If a therapist gives an alcoholic a drink laced with a nausea-inducing drug so that she or he will become ill after drinking the alcohol, the therapist is using

A) systematic desensitization.
B) aversive conditioning.
C) social-skills training.
D) an unethical procedure.

The therapist is using aversive conditioning, which involves pairing an unwanted behavior with an unpleasant stimulus to decrease the likelihood of that behavior being repeated. However, it should be noted that this particular example would be considered unethical and is not an appropriate treatment approach.