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': 'A victim of Tsunami has difficulty in overcoming the experience. She still recollects the happening in dreams and thoughts. The most likely diagnosis is : \nSelect and explain. \nA. Post traumatic stress disorder, B. Conversion disorder, C. Panic disorder, D. Phobia', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Recollection of the happening in dreams & thought after a life threatening event suggests the diagnosis of PTSD.', 'role': 'assistant'}]