Two Children,Jane and Joan,have Been Eyeing a New Water Pistol

Two children,Jane and Joan,have been eyeing a new water pistol in the local toy store for months.Each is convinced that her parents will buy her the water pistol as soon as summer comes.Yesterday,Jane's parents bought her the water pistol.As soon as Joan found out,she had a temper tantrum and hit Jane in the stomach._______ best explains Joan's behaviour?

A) The weapons effect
B) The cathartic effect
C) Social exchange theory
D) Frustration-aggression theory
E) The emotional consistency effect