Differences in Sexual Behavior Between Males and Females, Such as Higher

Differences in sexual behavior between males and females, such as higher levels of masturbation among males, earlier age at first intercourse among males, and greater interest in pornography and erotica among males, are best understood as arising

A) primarily from biological differences in the consequences of sexual activity, where it is the woman who might become pregnant without a man who will support her and the child.
B) primarily from societal expectations about what is "normal" and "proper" sexual behavior for males and females.
C) primarily from socializing within same-sex peer groups in early adolescence, and adopting the norms of same-sex peers.
D) primarily from experiences of women being punished more than men for early and non-marital sexual activity.
E) from a combination of all the factors listed.