The question stamp says the reasoning in the argument is flawed in that it blanks.

So this is a flaw question.

Let's figure out why.

The premise is.

Do not prove the conclusion.

So these are two things that are necessary in order to be a good manager.

But anyone who is able to diffuse tense situations must understand people.

And at this point, I'm recognizing that this problem appears to be based on conditional logic.

The first sentence is telling us there are two things that are necessary to be a good manager.

The next line is telling us: here's something that's necessary to diffuse tense situations.

So for the purpose of this explanation, let me just go ahead and diagram those statements to help you understand what the flaw is.

The first sentence is saying, if you are a good manager, then here are at least two things that are required.

You have to understand people.

And also, another thing you have to do, and I'll use a plus symbol for and,

another thing you have to do is you have to be able to diffuse tense situations.

The word must is introducing the necessary conditions here.

Now, the next line is telling us if you are able to diffuse 10 situations, then you must understand people.

So that's saying that this requires understanding.

And for the purpose of this explanation, let me just visualize that on a separate line.

If you are able to diffuse 10 situations, then that requires that you understand people.

Now, we have another premise at Sense that says, since Ishiko is able to diffuse tense situations,

so we are talking about Ishiko and we know that she has this quality right here.

And so I'll just think of that like this.

I'll just say, we are talking about a person who has this quality.

She can diffuse.

And then we get to the conclusion, which is, therefore, Ishiko must be a good manager.

The conclusion, which I'll just visualize below this line, is that Ishiko is a good manager.

Now, by the way, I'm going to emphasize again, I'm not drawing this out in a time situation.

This is just for the purpose of the explanation.

Here's what I want to show you.

First, we have two conditional statement premises.

Then we're told: Ishiko has this quality, she can diffuse.

Now, we're meant to understand: if she can diffuse, then, based on this premise, we know that she can understand people.

So this is another thing that we know about Ishiko.

She can understand people.

And at this point, we're supposed to recognize, well, look, Ishiko has the ability to diffuse and she can also understand.

That means that she has these two necessary conditions for being a good manager.

But does meeting these necessary conditions guarantee that she must be a good manager?

And the answer is, of course not, because that's confusing necessary and sufficient conditions.

The flaw in this question is that the author is misreading this first premise.

The author is thinking that it's saying, if you can understand and diffuse, then

that is sufficient to make you a good manager or to prove that you're a good manager.

But that's not what the first sentence says.

The first sentence says, those are necessary, you must have them.

That doesn't mean having them is enough to prove that you're a good manager.

Now, if it helps, let me just sketch out what the author thinks the first sentence means.

Here's what the author thinks: the first sentence means.

If you can understand and diffuse, then that proves you are a good manager.

This is the version of the first sentence that the author has in mind.

That's why they think, well, we know Ishiko can diffuse, which implies that she can understand, and therefore she must be a good manager.

But this, right here, is a mistaken interpretation.

This is wrong.

So when I go to these answers, I'm basically looking for an answer that says the author confuses what's

necessary for being a good manager with something that is sufficient to prove that she is a good manager.

Something along those lines.

the argument confuses a quality that shows an understanding of people with a quality that is necessary for understanding of people.

So answer choice A might be tempting because it is talking about confusing, sufficient, and necessary.

But the problem with A is that it's pointing to the wrong premise.

The author is confusing the first premise here about what's required to be a good manager.

But she is not confusing the second premise, which is: if you have the ability to diffuse, then you can understand.

A is talking about this second premise.

It's saying confusing a quality that shows an understanding.

So diffuse shows an understanding.

For a quality that's necessary for understanding.

But that's not what the author is doing.

In fact, the author is using the second premise correctly.

The author is saying, look, we know Ishika can diffuse, and then that does imply that she can understand.

So there's no problem with how the author is interpreting that second premise.

Where the author goes wrong is in thinking that diffusing and understanding implies good manager.

But that's not what A is about, so that's why A is not correct.

This is not a correlation to causation fallacy.

This is a problem with using conditional statements.

We're told that these two qualities are necessary for being a good manager.

That doesn't mean that they usually correlate with being a good manager.

Something being required is simply a different relationship from a correlation.

In addition, the author doesn't say that anything makes you a good manager.

The assumption relates to what is sufficient to prove that you're a good manager, but

that's not the same as saying that these two qualities cause you to be a good manager.

So that's a separate reason to get rid of answer choice B.

Confusion of sufficient and necessary is just a different flaw from assuming correlation proves cause.

This is exactly right.

This is describing the confusion of the first premise.

The premise told us that there are these two qualities that are necessary to be a good manager.

Those are things you must have.

That means necessary.

The author thinks that that means having those is enough to prove that you're a good manager.

Or in other words, that if you have those, that that guarantees you're a good manager.

This is the mistaken, wrong interpretation that I drew over here.

C is describing the author's error in thinking that this premise proves understanding and diffuse guarantee good manager.

That's why C is correct.

And, by the way, a lot of people have questions about guarantee.

Guarantee means the same thing as sufficient.

Here.

Confuses qualities necessary for being a good manager with qualities that are sufficient for being a good manager.

That's another way to read C.

Let's understand why the other ones are wrong.

Now.

The specific ways someone diffuses is not relevant.

We know that Ishiko has the ability to diffuse.

The specific way.

She does that, whether it's through praise or Through scolding and threats, we don't care.

She has the ability to defuse.

We know that that means she has the ability to understand.

The specifics regarding understanding and defuse don't affect the logic of this argument.

So that's why D is not correct.

that because all good managers have a certain quality, that Ishiko must have that quality.

Well, no.

First of all, it's a premise to say that Ishiko can defuse tense situations.

We're told, since she can defuse to tense situations, here's something else that must be true.

So, if you're thinking, well, the author concluded that she can defuse simply because

all good managers have this ability, that's not correct, because this is not a conclusion.

This is a premise.

In addition, from the fact that she can defuse, we can say that she can understand.

This right here.

Is not explicitly stated, but it is a valid inference from the fact Ishiko can diffuse.

The author wasn't saying, well, because she's a good manager, therefore she must be able to understand.

That's not the logic of the argument.

In order for answer choice E to be correct, we would want a premise to say Ishiko is a good manager,

and then a conclusion that says, so, therefore Ishiko must have this quality or that quality.

But that's not what happened here.