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': 'Degree of burns in a patient with blister formation is \nSelect and explain. \nA. 2nd degree superficial, B. 2nd degree deep, C. 1st degree burns, D. Full thickness burns', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Blisters are formed when only papillary dermis is destroyed.', 'role': 'assistant'}]