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: Forensic Medicine
[{'content': 'Pin point pupils are seen in: March 2010 \nSelect and explain. \nA. Opium poisoning, B. Acute alcohol poisoning, C. Barbiturate poisoning, D. Epileptic coma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A: Opium poisoning The triad of coma, pinpoint-immobile pupil and respiratory depression are diagnostic of opiate poisoning. Following conditions present with dilated pupils: Acute alcohol poisoning Barbiturates poisoning Epileptic coma Cerebral hemorrhage', 'role': 'assistant'}]