by ManhattanPrepLSAT1 Sat Dec 03, 2011 2:21 pm
Nice explanation extraordinary.kye! You nailed it.
One of the interesting things about the side affects described in the argument is that they sound an awful lot like those associated with chemotherapy. We all know that such a treatment is commonly used to treat cancer, whether it's a drug or not, that I'm not sure of.
But with cancer the consequences of not undergoing chemotherapy can be death. And in comparison losing one's hair or having aching joints doesn't seem all that bad. Presenting the negative consequences of using the drug and suggesting that they're terrible doesn't lead to the conclusion that not using the drug is better than using the drug - remember that this is a relative comparison and so we should consider all of the positives and negatives associated both with using the drug and not using the drug. This argument fails to consider the negative consequences of not using the drug - best stated in answer choice (B).
Let's look at the incorrect answer choices:
(A) is technically true, and yet does not represent a flaw in the reasoning. Be careful on answer choices that while true do not answer the question.
(C) is not an assumption of the argument. The author's conclusion does not rest on assumption regarding the percentage of patients with the disease that are treated with the drug. Even if only some of those who had the disease were treated with the drug, if using the drug was worse than the not, it should still be discontinued.
(D) could be an important consideration had the argument discussed the effectiveness of the drug from evidence based on a study that measure the effects over a limited time frame.
(E) is not true. The author says that such side affects are usually the case, implying that for some they may not be - which would represent a reduction in the severity of the side affects.
Hope that helps, and great work extraordinary.kye!