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
Condition where pulsatile tumor is found in external auditory meatus which bleed on touch - 
Select and explain. 
A. Cholesteatoma, B. Polyp, C. Glomus tumor, D. Malignancy middle ear
C: Glomus tumor
Answer: C: Glomus tumor 
Explanation: None