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Researchers did a study about the spread of disease X in a [#permalink]
12 Jan 2005, 15:11
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Researchers did a study about the spread of disease X in a small village of the South Vietnam. Disease X mostly came from the consumption of water from any river that contains a certain bacteria. According to the finding, there were 350 women and 425 men who were infected by the disease. The researchers concluded that men must be more susceptible to the disease.
Which of the following, if true, would most strengthen the researchers' conclusion?
(A) Most men got drinking water for the whole village from the nearby river.
(B) Some men left the village before to fight the war.
(C) The researchers were told that the number of men is as same as that of women.
(D) Men usually fished in the nearby river.
(E) The villagers usually boil the water before they drink.