An adolescent diagnosed with generalized anxiety disorder says, "My parents focus all their attention on my brother instead of me. He's perfect in their eyes." Which type of therapy might promote the greatest change in this adolescent's behavior?

A) Bibliotherapy
B) Play therapy
C) Family therapy
D) Behavior modification therapy

Family therapy focuses on problematic family relationships and interactions. The patient has identified problems within the family. Bibliotherapy and play therapy are appropriate for children rather than adolescents. The adolescent's problem is interpersonal and relates to relationships and self-perception; therefore, behavior modification therapy would not help.