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: Skin
[{'content': "Subepidermal lesion are \nSelect and explain. \nA. Bullous pemphigoid, B. Pemphigus vulgaris, C. Hailey-Hailey disease, D. Darier's disease", 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Bullous pemphigoid', 'role': 'assistant'}]