This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Poisoning, Subject name: Forensic Medicine
[{'content': "'Glassblowers shakes' are seen in poisoning due to \nSelect and explain. \nA. Lead, B. Copper, C. Mercury, D. Arsenic", 'role': 'user'}, {'content': "Answer: C \nExplanation: Glassblowers shakes' (hatters shake) is a form of chronic mercury poisoning occurring in workers exposed to mercury, characterized by muscle tremors, mental and behavioural changes, and stomatitis. Glassblower's cataracts are a form of cataract. They are formed by many years of exposure to infrared radiation while working. Ref: Krishan Vij textbook of forensic medicine, 5th edition pg : 473", 'role': 'assistant'}]