The diagnostic feature that differentiates PTSD from other disorders that occur following a stressful incident is :: (A) Episodic occurrence of symptoms, (B) Severe anxiety and autonomic arousal, (C) Re - experiencing and avoidance of trauma, (D) Nightmares about the event
Answer is C. Persons with other stressful disorder may present with any of the symptoms mentioned in the options but re - experiencing the symptoms is characteristic of Post - traumatic stress disorder.