Over the Course of 38 Therapy Sessions, Watson and Mary

Over the course of 38 therapy sessions, Watson and Mary Cover Jones used all of the following strategies to remove Peter's fear of the white rabbit, except

A) gradually bringing a white rabbit closer and closer to him until he eventually grew fond of it.
B) having him watch his friends play with a white rabbit.
C) showing him first pictures of white rabbits, then toy white rabbits, and introducing a real white rabbit.
D) having him eat candy in his high chair during the therapy sessions.