In a Study by Berkowitz, Subjects Were Made Angry in a Room

In a study by Berkowitz, subjects were made angry in a room containing either a gun or a badminton racket. Later, when given a chance to administer shocks to a "fellow student," subjects who had been in the room with the gun shocked the other person more than those who had been in the room containing the badminton racket. This study demonstrates:

A) that anger increases the probability of aggressive behavior
B) the power of "aggressive cues" in facilitating aggressive behavior
C) that thoughts about playing nonviolent sports, such as badminton, tend to reduce the probability of aggression
D) that the theory of "catharsis" is unable to explain aggressive behavior