Critical Reasoning

Dear Friends,

I was having problems in answering the following question.

Which of the following most logically completes the passage?

A certain tropical island received food donations in the form of powdered milk for distribution to its poorest residents, who were thought to be malnourished. Subsequently, the rate of liver cancers among those islanders increased sharply.The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein. This result is relevant because _______.

A. in the tropics, peanuts, a staple of these island residents, support a mold growth that produces aflatoxin
B. the liver is more sensitive to carcinogens, of which aflatoxin may be one, than most other bodily organs
C. casein is not the only protein contained in milk
D. powdered milk is the most appropriate form in which to send milk to a tropical destination
E. the people who were given the donated milk had been screened for their ability to digest milk


Please help.

OA after some discussions.

Regards
Deano.

I think the answer has to be A. The argument says that rats who were already exposed to "Aflatoxin" tend to develop liver cancer when fed "Casein", a milk protein. Now we already know that they are being fed Casein. We ned to find out if they have been exposed to Aflatoxin and A does just that.

What is the original answer?

wats the oa

IMO -A

I think it is A, but it seems like this is not very strong correct answer, others seem to be irrelevant and too subjective...

OA is option A