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
Most radiosensitine tumor of the following is - 
Select and explain. 
A. Ca glottis, B. Ca nasopharynx, C. Ca subglotic area, D. Ca thyroid
B: Ca nasopharynx
Answer: B: Ca nasopharynx 
Explanation: None