- Thu Aug 15, 2013 7:34 am
#10277
Thank you for your question, saranash1.
It appears you might be a bit confused regarding the wording of answer choice (C), which you're correct in identifying as the right answer. However, the language you've quoted in your question comes from choice (D): "Baldness in men can be caused by a variety of factors, only one of which is heredity." Choice (C) says: "The rebate, if offered, would not attract purchasers who otherwise might not use Grow-Again."
The argument in this strengthen question essentially concluded that offering a rebate on the purchase price would not increase sales of Grow-Again, because exceeding the five-drop daily recommended dose would not increase the product's effectiveness. This argument assumes that the only consumers who would be offered the rebate are those who already have the product and, because of the low daily dosage, don't need to purchase any more.
However, there is no reason to think the rebate would not also be offered to people who do not already own the product, and who would be attracted by the offer. That unconsidered possibility is addressed by (C), which provides a fact that dismisses it as not being the case. By providing a fact that protects the argument against attack on a weakness, answer (C) strengthens the conclusion.
One last note, this question is very similar to a Defender Assumption question in terms of approach. The only difference is the role of the answer choice. In an Assumption question the answer choice is necessary for the conclusion to be valid, but does strengthen the conclusion. Here, the role created by the question stem for the correct answer is to make the conclusion better, to strengthen it.
Hope that helps,
Ron
