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': 'Intra epidermal blisters are seen in: \nSelect and explain. \nA. Bullous pemphigoid, B. Pemphigus folliaceous, C. Dermatitis herpeteformis, D. Bullous SLE', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Pemphigus folliaceous', 'role': 'assistant'}]