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
Radiotherapy is the treatment of choice for: 
Select and explain. 
A. Nasopharyngeal Ca T3 N1, B. Supraglottic Ca T3N0, C. Glottic Ca T3N1, D. Subglottic Ca T3N0
A: Nasopharyngeal Ca T3 N1
Answer: A: Nasopharyngeal Ca T3 N1 
Explanation: None