Which Psychologist Can Be Described as Working from the Role-Playing

Which psychologist can be described as working from the role-playing model of hypnosis?

A) Dr. Amin says, "Hypnosis is a social interaction between a hypnotist and a subject."
B) Dr. Birnbaum says, "Hypnosis is an altered state of awareness characterized by heightened suggestibility."
C) Dr. Chestnut says, "Hypnosis involves a state of dissociated consciousness."
D) Dr. Davison says, "In hypnosis, part of the subject's consciousness remains a hidden observer."
E) Dr. Evans says, "Hypnosis is a trance state."