This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Forensic Medicine
[{'content': "Magnan's symptoms are associated with which poisoning event \nSelect and explain. \nA. Cocaine, B. cannabis, C. Amphetamine, D. Alcohol", 'role': 'user'}, {'content': "Answer: A \nExplanation: Magnan's symptom = cocaine bugs feeling of insect crawling under the skin ref : narayana reddy", 'role': 'assistant'}]