Studies by Bushman and Gibson (2011), in Which Participants Played

Studies by Bushman and Gibson (2011) , in which participants played a violent or non-violent video game and were tested for aggression next day, found that those who played the violent game:

A) were more aggressive next day
B) were not more aggressive next day
C) were more aggressive if they have ruminated (thought) about the game
D) were more aggressive if they had not ruminated about the game
E) were more aggressive only if tested on the same game