This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General surgery, Subject name: Surgery
[{'content': 'Moist heat burn which is present ? \nSelect and explain. \nA. Charring, B. Blister, C. Ulcer, D. Slough', 'role': 'user'}, {'content': 'Answer: B \nExplanation: .blisters are characteristic of moist burn', 'role': 'assistant'}]