Which Statement About Stress Disorders Is FALSE

Which statement about stress disorders is FALSE?

A) Blunted emotions and avoiding reminders of the event are some of the symptoms of stress disorders.
B) Acute stress disorder and post-traumatic stress disorder differ only in duration of symptoms.
C) Post-traumatic stress disorder rarely lasts longer than six months.
D) About 3.5 percent of adults suffer from post-traumatic stress in any given year.