CR

Question

Please, explain your answer.

12345678 · Answer

i know d ans bt got it wrong wen i gave gmatprep...waitin for d reasoning

dwivedys · Answer

If this is a GMATPrep Que - please label the question as such.

Between C and E - I prefer E. 

C says that traces of SV40 are still present in samples dating from 1960. It leaves the possibility open that the infected vaccines may have been discarded at that time and not used at all.

E clarifies the connection - when no contamination of vaccine there was no sv40 present in meso patients.

nyotamalaika · Answer

I got D. 

According to the text, primary cause of the cancer is exposure to asbestos while researchers think that infection by SV4O is. D strengthens researchers conclusion.

Beyond700 · Answer

There are 2 kinds of hypothesis presented here. 

One that connects the virus with illness and the other how the virus infected humans. 

'E' - supports the theory on infusion or human contact 

'D' - supports the first study that the Virus contributes to the illness.

As asked here,  most strongly supports 
 out of 'D' & 'E' - I would pick 'D'

ronron · Answer

the hypothesis states that the vaccin was the cause. 
Answer choice E says -> no contamination and no virus -> support that it was done by the contamination

ColumbiaDream · Answer

E supports the Hypothesis much stronger than Choice D.

gmatnub · Answer

Between C and E

Actually, if you read the question carefully, the hypothesis is asking whether "the vaccine was the source of the contamination/infection". Rephrase the hypothesis, it is really stating that the vaccine was " contaminated  with the virus". 


E does not directly prove/disprove (or support/unsupport) whether to the vaccine is the source of the virus. A "clean" batch of vaccine, by definition, does not contain the virus, therefore no viral infection by the clean batch. No contamination = no infection.

But that is not what the question is asking, it is asking for the evidences to support the hypothesis. 

C shows direct evidences that the vaccine was contaminated with the virus.

s_positive · Answer

I would go with E.

The hypothesis would be supported by this statement because. If in absence of contamination resulted in no presence of SV40, the reason for SV40's presence can be linked to contamination.

GMATBLACKBELT · Answer

We need to support the conclusion that this vaccine is the main source of M's decades later.

A: Irrelevant, doesn't support the conclusion.
B: Great. But this doesn't further support the conclusion.
C: Maybe a contender, but this is weak. Still showing signs and connecting M. today is weak. Doesn't really strengthen the conclusion.

D: Irrelevant. We are looking for support for the hypothesis that "This vaccine was the source of the virus found in ppl w/ M decades later." While this choice is tempting it doesn't match the conclusion or support it. Steer clear of a choice that refers to a premise only lightly mentioned when there is a choice that refers to the conclusion. Conclusion trumps premise in this case b/c Asbestos is only briefly mentioned and we are trying to support the conclusion!

E: best. If the vaccine was not contaminated and M do not have SV40, then this supports the hypothesis that the contaminated vaccine was the source.

waiting_to_exhale · Answer

Agree - D

Ferihere · Answer

it should be  D

rgajare14 · Answer

The reason I thought for OA not be D was because D states that the cause of the disease was not asbestos. But if it was not asbestos, it could have been anything else. By saying that, if not asbestos, then SV40, we are making an assumption. What do you think ?

TriColor · Answer

OA is E!

There are two supporting evidences for the hypothesis:
1) 60% of cancer cell contain SV40
2) Cells without cancer have no SV40

Therefore, we need to find a piece of evidence that supports either of these evidences. It seems that E is the only one that supports one of them -i.e. 2).

Am I doing it all right, guys?

CR

Prep Toolkit

Top 5 GMAT Debrief Videos

615 to 715 in 15 Days (Ria's Strategies)

More than Quant/Verbal Abilities: Speed vs. Accuracy

745 with Only Self-Prep and GMAT Club

From 555 to 765: 210-point Improvement

Perfect 805 Score Debrief by Julia

My Rewards