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: Social & Preventive Medicine
[{'content': 'Which method is used for safe disposal of Mercury? \nSelect and explain. \nA. Bury under eah, B. Collect carefully & reuse, C. Combustion, D. Treatment with Chemical', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Collect carefully and reuse is the correct method for safe disposal of Mercury.', 'role': 'assistant'}]