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': 'Opium poisoning is featured by -a) Constricted pupilb) Respiratory depressionc) Tachycardiad) Tachypneae) Hallucination \nSelect and explain. \nA. a, B. b, C. abe, D. ad', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Constricted pupil, respiratory depression and hallucination are seen in opium poisoning.\nThere is bradycardia (not tachcardia) and slow breathing (not tachypnea).', 'role': 'assistant'}]