What Statement Describes the Majority of Rapes on College Campuses

What statement describes the majority of rapes on college campuses?

A) The victim knows the attacker and reports the attack to campus authorities.
B) The victim knows the attacker and does not report the attack.
C) The victim does not know the attacker and reports it to a friend or family member.
D) The victim does not know the attacker and does not report the attack.