The Covert Sensitization Technique Described in the Text Requires

The covert sensitization technique described in the text requires

A) self-imposed periods of time-out.
B) one to associate disgusting or disturbing thoughts with an undesirable habit.
C) one to construct a personal hierarchy of aversive situations and then vividly picture relaxing images.
D) the listing of rewards that maintain an undesirable habit and then eliminating them.