Lawrence, a Hypochondriac, Gains a Great Deal of Attention from His

Lawrence, a hypochondriac, gains a great deal of attention from his family when he complains about health problems; they tend to ignore him when he talks about other topics. A behavior therapist has instructed the family to reverse these responses: ignore the complaints and reinforce other topics. What kind of treatment does this best illustrate?

A) systematic desensitization
B) contingency management
C) aversion therapy
D) guided exposure