by ManhattanPrepLSAT1 Thu May 13, 2010 1:31 pm
Compatible simply means "could be true" or "consistent with." It does not, however, mean must be true.
So, if the stimulus had said
All teachers impact children in a positive way. Anyone who impacts children in a positive way is a benefit to society.
Now, we can infer that all teachers benefit society. But also, those statements are consistent with a lot other information. For example...
If someone is not a teacher, then that person does not benefit society.
If someone benefits society, then that person is a teacher.
Children who play sports do better in school.
Okay, so the last one seems out of left field, but it doesn't matter. The last one is still consistent with the information presented in my hypothetical stimulus.
To the question!
We are presented with the following assertions.
1. A reason why European music is so influential and why it is a sophisticated achievement is that over time the original function of the music became an aspect of its style, not its defining force.
2. Each composition has so much internal coherence that the music ultimately depends on nothing but itself.
We are looking for an answer choice that contradicts one of those pieces of information or combination thereof. Fortunately, it's pretty hard to combine those statements, so we'll probably just need to contradict one of them.
(A) could be true. We don't know anything about African music.
(B) could be true. We know about one reason why European music has had such a strong influence. We don't know, however, that that is the only reason.
(C) could be true. We don't know anything about Chinese music.
(D) cannot be true. This contradicts the first statement. We know that the the most sophisticated music is music that is intelligible when it is presented independently from its original function.
(E) could be true. This answer choice discusses "works of art." If music is not art, then this statement could be true.
If you're trying to categorize this by question type, this question is asking you the same thing as "must be false" or "could be true EXCEPT."
Does this clear things up a bit? Let me know if you'd like any further explanation here.