A Stage Hypnotist Is Sometimes Successful in Getting People to Disrobe

A stage hypnotist is sometimes successful in getting people to disrobe in public. What is the BEST explanation for this phenomenon?

A) When hypnotised, a subject comes under the total control of the hypnotist and will follow any instructions to the letter.
B) The subject is a confederate of the hypnotist and disrobes while pretending to be hypnotised.
C) When hypnotised, subjects are able to convince themselves that they cannot be held responsible for their actions.
D) The hypnotist is careful to select only those subjects who look as if they would enjoy disrobing in public.