Which of the Following Conclusions Is Most Difficult to Explain

Which of the following conclusions is most difficult to explain from the perspective of the original formulation of the frustration-aggression hypothesis?

A) The need to aggress in response to frustration can be reduced if the frustrated individual behaves in an aggressive but relatively harmless way toward an object that is not related to the source of the frustration.
B) The need to aggress in response to frustration is taught directly by reinforcement,important models,and the media,and can be "unlearned" if the reinforcements and models change.
C) The need to aggress in response to frustration is a psychological drive that resembles the physiological drive of seeking food in response to hunger.
D) The need to aggress in response to frustration can lead to nonviolent acts of aggression such as spreading rumours about someone or telling hostile jokes.