This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vestibulobullous disorders, Subject name: Dental
[{'content': 'One of the followingis the t/t of choice for dermatitis herpetiformis \nSelect and explain. \nA. Coicosteroids, B. Dapsone, C. Mtx, D. Retinoids', 'role': 'user'}, {'content': "Answer: B \nExplanation: oral dapsone is the main therapy used for dermatitis herpetiformis. 100-200 mg daily and gradually decreased to a maintenance dose of 50 mg daily.page no.286. Reference IADVL's concise textbook of dermatology", 'role': 'assistant'}]