Bevex, an artificial sweetener used only in soft drinks, is carcinogenic for mice, but only when it is consumed in very large quantities. To ingest an amount of Bevex equivalent to the amount fed to the mice in the relevant studies, a person would have to drink 25 cans of Bevex-sweetened soft drinks per day. For that reason, Bevex is in fact safe for people.
In order for the conclusion that Bevex is safe for people to be properly drawn, which of the following must be true?
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ACancer from carcinogenic substances develops more slowly in mice than it does in people
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BIf all food additives that are currently used in foods were tested, some would be found to be carcinogenic for mice
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CPeople drink fewer than 25 cans of Bevex-sweetened soda per day
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DPeople can obtain important health benefits by controlling their weight through the use of artificially sweetened soft drinks
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ESome of the studies done on Bevex were not relevant to the question of whether or not Bevex is carcinogenic for people
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显示答案
正确答案: C