This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Larynx, Subject name: ENT
Radiotherapy is treatment of choice for: 
Select and explain. 
A. Nasopharyngeal CaT3N1, B. Supraglottic CaT3N0, C. Glottis CaT3N0, D. Subglottic CaT3N0
A: Nasopharyngeal CaT3N1
Answer: A: Nasopharyngeal CaT3N1 
Explanation: (a) Nasopharyngeal CaT3 N1 (Ref. Current Diagnosis & Treatment Otolaryngology, Lalwani, 3rd ed., 464)The best management of nasopharyngeal carcinoma in all the stages is radiotherapy.Rest of the tumours mentioned are laryngeal carcinomas stage 3 where the treatment is concurrent chemoradiation.