Practice Quiz

LSAT

Category - Logical Reasoning

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Some anthropologists believe that ancient humans did not practice monogamy, and point to cave drawings of men surrounded by multiple women as proof of their theory. However, many modern works of art also depict men taking multiple lovers, yet many modern humans do practice monogamy. Therefore, _____________________________________.

Which of the following most logically completes the argument?
  1. Clearly ancient humans did practice monogamy.
  2. We will never know whether ancient humans practiced monogamy or not.
  3. It is unclear at what point humans went from a mainly polyamorous to a monogamous lifestyle.
  4. Ancient cave drawings are not a reliable source for proving that ancient humans practiced monogamy.
  5. At most only a few ancient humans practiced monogamy.
Explanation
Answer: D - The most logical completion to the argument is that ancient cave drawings are not a reliable source for proving that ancient humans practiced monogamy. The passage casts doubt on the evidence cited by the anthropologists, but does not completely discredit their theory. The cited source is a weak one, but cannot be shown to be definitively true or false.
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