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 choice in stage III carcinoma larynx is- \nSelect and explain. \nA. Chemotherapy, B. Surgery + radiation, C. Surgery + chemotherapy, D. Only radiotherapy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]