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 nasopharyngeal carcinoma: \nSelect and explain. \nA. Radiotherapy, B. Chemotherapy, C. Surgery, D. Surgery and radiotherapy', 'role': 'user'}, {'content': 'Answer: A \nExplanation: TOC for persistent nasopharyngeal fibroma - Radiation + Surgery TOC for advanced carcinoma - Chemotherapy + Radiation', 'role': 'assistant'}]