When butterfat was considered nutritious and healthful, a law was enacted requiring that manufacturers use the term “imitation butter” to indicate butter whose butterfat content had been diminished through the addition of water. Today, it is known that the high cholesterol content of butterfat makes it harmful to human health. Since the give reduced-butterfat butter the more appealing name of “lite butter” should be allowed to do so.
What this question is testing
Your task
Find the choice that makes the argument's conclusion less likely to be true.
Common trap
Answers that look negative but attack a claim the argument never relied on.
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Find the assumption the argument depends on, then pick the choice that undermines it.
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