Which Situation Is Consensual Sex Rather Than Rape

Which situation is consensual sex rather than rape?

A) A husband forces vaginal sex when he comes home intoxicated from a party.The wife objects.
B) A woman's lover pleads with her to have oral sex.She gives in but then regrets the decision.
C) A person is beaten,robbed,and forcibly subjected to anal penetration by an assailant.
D) A dentist gives anesthesia for a procedure and then has intercourse with the unconscious patient.