A client who survived an airplane crash has a diagnosis of posttraumatic stress disorder (PTSD). He has a history of nightmares, depression, hopelessness, and alcohol abuse. Which option offers the client the most lasting relief for his symptoms（）
A. The opportunity to verbalize memories of trauma to a sympathetic listener.
B. Family support.
C. Prescribed medications taken as ordered.
D. Alcoholics Anonymous (AA) meetings.