#3 - Local, Must Be True

[Administrator]

Complete Question Explanation
(The complete setup for this game can be found here: lsat/viewtopic.php?t=4778)

The correct answer choice is (A)

This question establishes that O is a geology major who speaks on friendship. This is huge, because O is the student we knew the least about up until now. From the first two rules, we know that exactly two students speak on friendship—a geology major and a history major. So, if O is a geology major who speaks on friendship, and M also speaks on friendship (third rule), then M must be the history major who speaks on friendship:

oct12_game_1_#3_diagram_1.png

Clearly, then, the three students who speak on liberty must be N, P, and R:

oct12_game_1_#3_diagram_2.png

Before proceeding to make additional inferences, take a quick look at the answer choices and check if our inference about M matches any of them. And indeed, answer choice (A) agrees with it, and is therefore correct. Answer choices (B) and (C) must be false, while answer choices (D) and (E) could be true, but are not necessarily true.