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': 'All are seen in PTSD; post-traumatic stress disorder EXCEPT: \nSelect and explain. \nA. Emotional numbing, B. Hallucination, C. Hyper arousal, D. Vivid dreams', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Vivid dreams REF: Kaplan & Sadock\'s Synopsis of Psychiatry: 10th Edition, page 615"The principal clinical features of PTSD are painful re-experiencing of the event, a pattern of avoidance and emotional numbing, and fairly constant hyper arousal. Patients may also describe dissociative states and panic attacks, and illusions and hallucinations may be present"', 'role': 'assistant'}]