Curtis is undergoing systematic desensitization to overcome his fear of heights. relaxing to each step in the his fear hierarchy allows curtis to gradually undergo

a. adaptation.
b. disinhibition.
c. role reversal.
d. stimulus control.

Adaptation.

Explanation:

Adaptation may be defined as the phenomena by which the individual becomes more favorable towards its environment. The adaptation is helpful for the individual to live in the particular area.

The adaptation in psychology might help the individual to overcome from their fear. The Curtis has the fear of height but she can overcome by adapting the situations and facing more areas that are situated at the height. This hierarchy allows Curtis to undergo the adaptation.

Thus, the correct answer is option (A).

is it multiple choice?