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': "Post traumatic stress-disorder is associated with all except: \nSelect and explain. \nA. Flash back, B. Severe traumatic injury, C. Re-experiencing stressful events, D. It does't develop after 6 months of stress", 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. It does not develop after 6 months of stress', 'role': 'assistant'}]