Which of the following is a hypothesis proposed by evolutionary psychologists about men's testosterone levels?
A) Men's testosterone levels should decrease after entering into a long-term committed relationship.
B) Men's testosterone levels should increase after entering into a long-term committed relationship.
C) Men's testosterone levels should increase after their partner gives birth to a son.
D) Men's testosterone levels should increase after their partner gives birth to a daughter.

Question

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Evolutionary psychologists propose that men's testosterone levels decrease after entering a long-term committed relationship, as lower testosterone is associated with reduced mating effort and increased parental investment.

Which of the Following Is a Hypothesis Proposed by Evolutionary