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: Surgery
[{'content': 'Frost bite is treated by - \nSelect and explain. \nA. Rapid rewarming, B. Slow rewarming, C. IV pentoxyphiline, D. Amputation', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Slow rewarming", 'role': 'assistant'}]