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
What is used to prevent exposure in operation theatre? 
Select and explain. 
A. Wooden paition, B. Lead gown, C. Nickle gown, D. Iron gown
B: Lead gown
Answer: B: Lead gown 
Explanation: Ans. is 'b' i.e., Lead gown Lead aprons are used for radioprotection in OT.