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
FISCH classification is used for- 
Select and explain. 
A. Juvenile nasopharyngeal angiofibroma, B. Nasopharyngeal ca, C. Vestibular schwannoma, D. Glomus tumor
D: Glomus tumor
Answer: D: Glomus tumor 
Explanation: FISCH classification of glomus tumor