An Evolutionary Psychologist Would Focus on Which of These as a Primary

An evolutionary psychologist would focus on which of these as a primary reason why men are more promiscuous than women?

A) Men are more reinforced by passing on their genes than women.
B) The biological costs of reproduction are lower for men than women.
C) Men are more approach motivated and women are more avoidance motivated by sex.
D) The reputational costs of promiscuity are more punishing for women than men.