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
All are seen in PTSD; post-traumatic stress disorder EXCEPT: 
Select and explain. 
A. Emotional numbing, B. Hallucination, C. Hyper arousal, D. Vivid dreams
D: Vivid dreams
Answer: D: Vivid dreams 
Explanation: 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"