This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Pharynx, Subject name: ENT
Treatment of choice for nasopharyngeal carcinoma is 
Select and explain. 
A. Surgery, B. Radiotherapy, C. Surgery & radiotherapy, D. Chemotherapy
B: Radiotherapy
Answer: B: Radiotherapy 
Explanation: Treatment of nasopharyngeal carcinomaIrradiation is the treatment of choice (external radiotherapy)Radical neck dissection is required for persistent nodes when the primary has been controlled and in post-radiation cervical metastasisSystemic chemotherapy is used as palliation for distant metastases or radiation failureFor advanced stages (stage III & IV), the cure rate can be doubled when chemotherapy is combined with radiotherapyRef: PL Dhingra, Diseases of Ear, Nose & Throat, 7th edition, pg no. 279 - 286