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
Undifferentiated carcinoma of nasopharynx belongs to which category as per WHO classification 
Select and explain. 
A. Type 1, B. Type 2, C. Type 3, D. Type 4
C: Type 3
Answer: C: Type 3 
Explanation: NASOPHARYNGEAL CANCER On the basis of histology, as seen on light microscopy, WHO has lately reclassified epithelial growths into three types:- Ref:- Dhingra; pg num:-250