What Is the Basic Concept Behind the Covert Desensitization Method

What is the basic concept behind the covert desensitization method of treating unwanted sexual arousal?

A) to replace the immediate reinforcement of the behaviour with the unpleasant consequences that ordinarily take longer to be experienced
B) to improve family functioning, social skills, and overall effectiveness of appropriate adult relations
C) to create empathy and sensitivity for the victim of the behaviour
D) to create a physically painful experience to replace the immediate reinforcement that the unwanted behaviour has previously produced