"Friends with Benefits" Situations, in Which Men and Women Have

 "Friends with benefits" situations, in which men and women have sex without expectations for an emotional bond,

A) are likely to produce equal senses of reward for both men and women.
B) might cause more problems for men than women, because of testosterone's effects on human bonding.
C) might cause more problems for women than men, because of oxytocin's effects on human bonding.
D) are likely to cause equal distress for men and women.