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
Treatment of choice for T2 carcinoma of nasopharynx is - 
Select and explain. 
A. Surgery, B. Radiotherapy, C. Chemotherapy, D. Surgery + postoperative radiotherapy
B: Radiotherapy
Answer: B: Radiotherapy 
Explanation: Irradiation is treatment of choice (external radiotherapy).