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': 'The poison that can be detected in hair/bones long after death is: Gujarat 07; COMEDK 08; FMGE 08 \nSelect and explain. \nA. Lead, B. Mercury, C. Arsenic, D. Cannabis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. Arsenic', 'role': 'assistant'}]