- Thu Dec 01, 2016 1:20 am
Thanks for the question about this complex Method-AP question, Cindel. Interestingly, I just wrote a post for our blog on the very subject of analyzing questions like this, and it will be posted next week - perhaps a little late for your needs. So, I'll recap here.
Many of these questions have multiple conclusions, and it's important to figure out which conclusion is which. One gets all the support and gives none - that's the Main Point. The other gets some support and gives some - that's an Intermediate Conclusion.
The second sentence here is an Intermediate Conclusion, supported by the first sentence (the one we are asked about in the stem) and supporting the last sentence, which is the Main Point. Since the first sentence supports the Intermediate Conclusion, which then supports the Main Point, the correct answer is B.
I see the cause of your confusion here - the use of the word "for" to introduce the Main Point is a bit odd, and we are used to seeing "for" as a premise indicator, as in "for the reason that" (aka "because"). Here, though, look at the interaction with the word "thus" (big conclusion indicator) in that same sentence. "For" is being used here more like "if" - paraphrase that sentence as "if they do that it would be wrong" and you'll see that it's a conclusion and not a premise.
Don't be too mechanical in relying on indicator words, but be sure to look at how those words are being used in the overall logic of the argument. Those words can help, but our authors are ready to set traps like this one to challenge us to go beyond mechanics and into true reasoning.
Keep up the good work, and good luck on the test!
Adam M. Tyson
PowerScore LSAT, GRE, ACT and SAT Instructor
Follow me on Twitter at https://twitter.com/LSATadam