This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Acoustic Neuroma, Subject name: ENT
[{'content': 'Most common Cerebellopontine angle tumour is: \nSelect and explain. \nA. Acoustic neuroma, B. Cholesteatoma, C. Meningioma, D. None of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (a) Acoustic neuroma is the most common benign tumour of the CP angle.(Ref. Cummings, 6th ed., 2748)The next most common tumour here is meningioma followed by epidermoid, i.e. cholesteatoma.', 'role': 'assistant'}]