In this stimulus specifically, S and N are labeled by if/then.

P: if majority favor-->then airport built

C: //if majority favor-->//then airport built (conclusion negates without switching S&N, thereby confusing necessary and sufficient)

all other answer choices are irrelevant or not describing the stimulus correctly, hope this helps:)

This is what I did to get it right! There are if thens in both paragraphs.

Principle: upset-->label

Application: /upset-->/label

The application did a mistaken negation. It negated both sides of the arrow without taking the contrapositive:) None of the other answer choices are relevant, but I knew what I was looking for and took a chance on E being correct in saying this, even with the confusing wording. I hope this answers your q. :)

#feedback I have done a few different LSAT course, but you by far do the best job when explaining out loud. Biggest feedback is that you make videos for all the lessons where there aren't any- hearing you explain things is really helpful, and without your explanations many of your lessons get lost in translation. But I am happy with your course so far. :)

Hi ylola_2000! I have seen a few of your comments on this Arguments modules. I HIGHLY suggest you get the book "The Loophole" by Ellen Cassidy. This book is a fantastic resource that basically teaches you 'the loophole' to logical reasoning- which is ASSUMPTIONS. An assumption is a loophole in an argument, and it will guide you to its weakness, and therefore the correct answer to the question. :)