It is, frankly, somewhat frustrating that the video explanation to this question does not actually explain why the answers are wrong. Basically, the only thing that happens is the narrator says the wrong answers are bad and does not get into why they are bad. Like, how are we supposed to know they are bad, and why they are bad, if we got the answer wrong???? Please actually explain it to us. That's why we use this service.

@Lindaboston Is the central branch not closed for the holiday 1/19?

@Kevin_Lin Are there times when it would not? Or is it just that it might be confusing / clunky?

I think question 2 requires an assumption that isn't accounted for. If you don't avoid training, that doesn't mean you have to be well trained. You could just be trained mediocrely. I don't think it makes sense to chain unless you make it clear that not avoiding training means well trained.

@nmalek I did it like this too, and I would really like to know why doing it that way would be wrong.