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: ENT
[{'content': 'Treatment of erythroplakia \nSelect and explain. \nA. Excision, B. Excision and regular follow up, C. Radiotherapy, D. Steroid injection', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]