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September 2007 LSAT preptest 52 explanation

17. (B)
Question Type: Analyze the Structure
This determine the function question involves an argument whose conclusion is that Graham’s argument is unpersuasive. The philosopher explains Graham’s faulty argument: since we’re only truly happy when we’re active, the best life is one in which we are always active. However, the philosopher notes, we are sometimes happy when we sleep, and we are not active at that time. The question ...

The wonderful folks here at AtlasLSAT are watching over the progress of a little study groupish-type environment I'm establishing over on facebook.

The Official LSAT TEAM is made up of some very motivated folks who have come together to kick LSAT butt all across the globe this summer. Our goal is simple: 180. Our mission, also simple: We are thrive on structure, teamwork, and personal responsibility.

We're made up of 2 teams of approximately 7 ...

I think I see the overall logic here: Language requires -> Verbal Signs requires -> Conceptual Thought = Conceptual Thought is required for Language. However, I'm struggling to explain why E is logically incorrect. If only humans can ask for an egg or an apple, then only humans can distinguish objects from other objects, and in turn, only humans can possess the ability for conceptual thought. So, other than humans, the vocal expressions of animals ...

#17 drove me slightly crazy...

I'm having difficulty with reading/applying the logic chain with binary grouping! Any expertise is greatly appreciated.

I picked B and am having difficulty justifying why D is more correct. If I negate answer choice B - overproduction of adrenaline does not cause ADD in children - then it seems like it negates the argument and thus is a valid assumption?

The fact that "computers" is in the correct answer choice for this question completely threw me off. I went with choice C...is it wrong because it violates the necessary and sufficient conditional of "if art is great, it must show deep emotion, but if it shows deep emotion, it is not necessarily great?"

I understand why D is correct, however, I'm having trouble explaining why A is wrong. 18 hrs a day of work = no time for leisure activities but why is A true since it reverses the stated logic but does not negate it? Oh, I think I may have realized the answer...does it have something to do with "could be true"? I guess A could be true but there's no way that D could be ...

I was trapped by answer choice A. Can you help explain what is wrong with A and what is so right about C? I'm guessing it's the keyword "health"

I understand that E is right, but I chose B when I saw it and moved on. Any tips on how to spot B as a wrong answer type?