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': 'Squamous cell carcinoma of maxilla T3N0M0 staging. Treatment is - \nSelect and explain. \nA. Radiotherapy, B. Maxillectomy, C. Radiotherapy and maxillectomy, D. Maxillectomy and chemotherapy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]