Which Psychologist Can Be Described as Working from a Trance

Which psychologist can be described as working from a trance theory 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 splitting of consciousness."
D) Dr.Davison says,"In hypnosis,part of the subject's consciousness remains a hidden observer."
E) Dr.Evans says,"Hypnosis involves an altered state of awareness characterized by heightened suggestibility."