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
Nasopharyngeal Ca; Most common site is : 
Select and explain. 
A. Fossa of Rosenmuller, B. Post end of septum, C. Post part of Nasal cavity close to the margin of sphenopalatine foramen., D. Lateral part of nasopharynx
A: Fossa of Rosenmuller
Answer: A: Fossa of Rosenmuller 
Explanation: Ans. is 'a' i.e. Fossa of Rosenmuller Nasopharyngeal Ca:MC type is * - Squamous cell CaLymph node involvement is very common. Sometimes a cervical node may be the only manifestation of nasopharyngeal cancer (occult primary)Treatment of choice - Radiotherapy *