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': 'Rule of 9 in burns is used to denote ? \nSelect and explain. \nA. Depth of bums, B. % of total body surfacearea, C. Severity of bums, D. Type of bums', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., % of total body surface area", 'role': 'assistant'}]