Necessary Assumption Guaranteed Wrong Answer

Jhineline

The video accompanying PT 73 S4 Q26 ruled out answer choice B because it included the conditional, "if."

Will any necessary assumption answer choice be wrong if that is the case?

Admin Note: https://7sage.com/lsat_explanations/lsat-73-section-4-question-26/

blanklaw

Not necessarily-- if the stimulus activates the condition based on the premises it gives, then the conditional statement could definitely be an NA answer-- it just can't be the case that a conditional is given in an answer and we don't know whether it applies to the stimulus or not because a lack of information for triggering it...

To put it simply, the conditional has to apply to the stimulus

blanklaw

I just relooked over that question-- we can't assume from the stimulus that the insecticides sprayed onto crops were reduced even slightly-- we don't know that this has/will happened

blanklaw

PT84 S2 Q12 is an example of an NA that has a conditional as the right answer. I think that these answers usually happen when the NA has to link the premise to the conclusion. Sometimes (actually, quite often) the argument will have little/no support from the premises it gives to back up its conclusion