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: Surgery
The treatment of choice for Nasopharyngeal carcinoma is: 
Select and explain. 
A. Chemotherapy alone, B. Radiotherapy alone, C. Radiotherapy & surgery, D. Surgery alone
B: Radiotherapy alone
Answer: B: Radiotherapy alone 
Explanation: None