* CR

[QV]

Advertisement: Of the many over-the-counter medications marketed for the relief of
sinus headache. SineEase costs the least per dose. And SineEase is as effective per
dose as the most effective of those other medications. So for relief from sinus
headaches, SineEase is the best buy.
Which of the following, if true, most seriously weakens the argument above?
(A) Most of the over-the-counter medications marketed for the relief of sinus
headache are equally effective per dose in providing such relief.
(B) Many of the over-the-counter medications marketed for the relief of sinus
headache contain the same active ingredient as SineEase.
(C) People who suffer from frequent sinus headaches are strongly advised to consult
a doctor before taking any over-the-counter medication.
(D) An over-the-counter medication that is marketed for the relief of symptoms of
head cold is identical in composition to SineEase but costs less per dose.
(E) The per dose price for any given over-the-counter medication marketed for the
relief of sinus headache is higher for smaller packages than it is for larger
packages.

[QV]

please provide explanation with your answer.

[Guest]

I would say D is the answer. Can you post the correct answer?

[abhishek]

A does not weaken, B does noothing much C is not completely relavant D in effect says that the claim is false and attacks the claim somwwhat directly E keeps the status quo.
So D
Is that the correct aanswer ?

[Paul]

Premise:
Of the many over-the-counter medications marketed for the relief of sinus headache.
"Many" is not all, and answer (D) provides an instance where one of the medications that this ad
did not consider is in fact cheaper then the medication advertised.
As a result the premise/support for the conclusion is weakened because the conclusion states
that "SineEase is the best buy", when in fact there is an identical product, which is just marketed
under a different name that is cheaper making it a better buy.

[esledge]

Please cite the source (author) of this problem. We cannot reply unless a source is cited (and, if no source is cited, we will have to delete the post!). Thanks.

Please also make sure to read (and follow!) the forum guidelines before posting. The subject heading should be the first 5-8 words of the problem.