This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Blistering disorders, Subject name: Dental
[{'content': 'Which of the following is a condition affecting the epidermis of the skin in which blisters do not form? \nSelect and explain. \nA. Adenocarcinoma, B. Bullous pemphigoid, C. Carcinoma, D. First-degree burn', 'role': 'user'}, {'content': 'Answer: D \nExplanation: First-degree burns damage the upper layers of the epidermis only, and blisters do not form in the skin.', 'role': 'assistant'}]