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': 'What is used to prevent exposure in operation theatre? \nSelect and explain. \nA. Wooden paition, B. Lead gown, C. Nickle gown, D. Iron gown', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Lead gown Lead aprons are used for radioprotection in OT.", 'role': 'assistant'}]