This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Ear, Subject name: ENT
[{'content': 'Condition where pulsatile tumor is found in external auditory meatus which bleed on touch \nSelect and explain. \nA. Cholesteatoma, B. Polyp, C. Glomus tumor, D. Malignancy middle ear', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Glomus tumour presents as red vascular polyp filling external auditory meatus and bleeds profusely on manipulation. Ref: Dhingra 6th edition pg. 109', 'role': 'assistant'}]