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': 'Metal fume fever is common in chronic poisoning with: \nSelect and explain. \nA. Mercury, B. Lead, C. Zinc, D. Thallium', 'role': 'user'}, {'content': 'Answer: C \nExplanation: C i.e. Zinc', 'role': 'assistant'}]