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: Dental
[{'content': 'Intraepidermal bulla is seen in – \nSelect and explain. \nA. Pemphigoid, B. Pemphigus, C. Dermatitis herpetiformis, D. Light reaction', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]