In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Q: Question: In the treatment of alcoholism, what is Exposure Therapy based on the behavior of drinking?
Options: <1> In the Respondent Conditioning. <2> In operant conditioning. <3> In social learning. <4> In the Saciation. <5> In Cognitive Reatribution.
A:
1