by ManhattanPrepLSAT1 Sat Sep 04, 2010 10:20 am
Good question.
The short answer why answer choice (B) is not correct is that Susan never addresses what is true for most art galleries, she only addresses what is true for most smaller galleries.
If you compare answer choices (B) and (D) you can see that answer choice (B) discusses art galleries in general, and answer choice (D) discusses smaller art galleries.
In order to find the point of disagreement between to characters, it must be the case that each character has an explicit (and sometimes even an implicit) opinion on the claim. We simply don't know what Susan thinks is true for most art galleries in general.
We know that Lea thinks that contemporary art is bereft of creativity (and notice she says this is evident by a visit to any gallery, that includes smaller galleries as well), whereas Susan says that one can still find spontaneous, innovative new artwork in smaller art galleries. So they would disagree about whether some small art galleries still exhibit creative new artwork - answer choice (D).
(A) is not addressed by either Susan or Lea. This answer choice is too broad relating to art in general rather than contemporary art and Susan only addresses what is true for smaller galleries.
(B) is not addressed by Susan who only discusses smaller galleries.
(C) is something Lea agrees with, but Susan doesn't address.
(E) is addressed by Lea but not Susan.
I hope this helps you see this one a bit more clearly. There's a subtle shift in language in the answer choices in this question, which is so typical of the LSAT writers. I agree that degree modifiers like "some" and "most" are really important but in this case so to is the adjective "smaller" galleries!