The crucial distinction between (B) & (C) concerns what exactly is the "
case at issue"?
The way to think about this is to step back and apply a central RC strategy. What's the
main idea of the prompt argument? In other words, if some author wrote this in an article in a journal or magazine, what would have been that author's principal concern?
Well, in the past, there was a clear pattern: fewer restrictions --> more ads --> more consumer savings. Clear cause & effect.
Now, when they abrogate the requirement for displaying fees, consumer prices will rise. Clearly, the author, a consumer advocate, is concerned about this, and this prompt may well be part of a larger argument about why we should
NOT get rid of the requirement for lawyers to display their fees---that would likely be a consumer advocate's larger agenda with respect to this issue. Clearly, this consumer advocate is on the lookout for consumers and is bothered about the fact that, if this requirement is lifted, the consumers will be paying more and more. Therefore, this is the "
case at issue," the thing that really concerns the author.
That's the gigantic problem with (B). The "
case at issue," namely what would happen if the fee requirement is abolished, is clearly a case in which the past pattern would no longer hold. Option (B) mistakenly calls some other unspecified concern the "
case at issue," and treats this important issue, the author's main point, as a throwaway extra detail. It entirely misses the point of what is important to the author.
Choice (C) gets it right: the cause & effect pattern discussed in the first BF statement will NOT play out in the "
case at hand." The "
case at hand" that deeply concerns this author is the case in which fees would go up, and the second BF "
offers a consideration in support of" the prediction that fees could go up. The best answer is
(C).
This question, in a way, is almost a hybrid between CR and RC, and in many ways, we have to have sharp RC skills to analyze the prompt argument. It's not a trivial detail to note that the speaker is a "
consumer advocate," i.e. someone who is deeply concerned with what would be fair for all the good hard-working people who are struggling to get by. Knowing that the speaker comes from that perspective is crucial for identifying the "
case at issue." For success on the GMAT Verbal, you have to have this general sense of what kinds of professionals are for or against what kinds of things. What do consumer advocates want? What do advertisers want? What do consulting firms want?" What do politicians want? etc. etc. It's very important to develop this real-world intuition. See:
GMAT Critical Reasoning and Outside KnowledgeDoes all this make sense?
Mike