Why Does Rape Occur on a Wide Scale During War

Why does rape occur on a wide scale during war?

A) because male soldiers are away from home and need to have no access to consenting sexual partners
B) because male soldiers miss their wives and girlfriends, and want to be close to someone
C) because male soldiers use rape as a method of humiliating their enemies
D) because male soldiers are unaware that what they are doing is rape, since military training teaches that aggression is normal