This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
[{'content': 'True about posttraumatic stress disorder : \nSelect and explain. \nA. Recall of traumatic events, B. Associated with major trauma like pelvic, C. Disturbed sleep, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A ie. Recall of traumatic events; B i.e. Associated with major trauma; C i.e. Disturb Sleep', 'role': 'assistant'}]