Critical Reasoning

Dr. A: The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient.
Dr. B: But three studies published in the Journal of Medical Associates have rated that vaccine as unusually effective.
Dr. A: The studies must have been faulty because the vaccine is worthless.
In which of the following is the reasoning most similar to that of Dr. A?
(A) Three of my patients have been harmed by that vaccine during the past three weeks, so the vaccine is unsafe.
(B) Jerrold Jersey recommends this milk, and I don’t trust Jerrold Jersey, so I won’t buy this milk.
(C) Wingzz tennis balls perform best because they are far more effective than any other tennis balls.
(D) I’m buying Vim Vitamins. Doctors recommend them more often than they recommend any other vitamins, so Vim Vitamins must be good.
(E) Since University of Muldoon graduates score about 20 percent higher than average on the GMAT, Sheila Lee, a University of Muldoon graduate, will score about 20 percent higher than average when she takes the GMAT.

Can you please explain the answer as well

IMO B. I think Dr.A does not trust the Journal of Medical Associates

IMO B as well but original answer is C

Any possible explainations for it ??

phelps wrote:IMO B as well but original answer is C

Any possible explainations for it ??

I am not sure I can explain why C is correct. What is the source of this question & do you have the official explanation?

Dr A uses circular reasoning (the premise presupposes the conclusion). he says :
1) vaccine is useless.
2) studies are faulty because the vaccines are useless.

C uses similar pattern of reasoning:
Wingzz tennis balls are the best because they are better than any other tennis balls or in other words: Wingzz tennis balls are the best because they are the best.

IMO C)

The new influenza vaccine is useless at best and possibly dangerous. I would never use it on a patient because the vaccine is worthless i.e. useless .

The line of reasoning is similar to below:

XYZ is a bad person because he/she is bad.

C) is the only candidate.

I think C is the right answer here