Answer:
Contradict the catharsis hypothesis
Step-by-step explanation:
Catharsis in psychology is the process of releasing or venting out emotions.
Catharsis hypothesis believes that a person is relieved from aggressive emotions by releasing aggression through some form of action.
In the given case, both the subjects contradict each other because if aggressive emotions are released by 'blowing off steam' than playing violent games should not build aggressive thoughts. Or, if playing violent games build aggressive thoughts than 'blowing off steam' can not help in the catharsis hypothesis.