Thalia's New Dentist Plans to Use Hypnosis,instead of Anesthesia,while He

Multiple Choice

Thalia's new dentist plans to use hypnosis,instead of anesthesia,while he works on Thalia's teeth.Thalia asks you if she should go along with this,or if she should find another dentist.What should you tell her,based on research into the effects of hypnosis

A)  Once she is no longer hypnotized, her sensitivity to pain will show a rebound effect. 
B)  Hypnosis typically has no effect on the experience of pain. 
C)  Hypnosis is effective as an anesthetic only when it is used in conjunction with sedatives. 
D)  Hypnosis has been an effective substitute for some anesthetic drugs for some people.