This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Tumors, Subject name: ENT
[{'content': 'Cerebello pontine angle tumour is most commonly: \nSelect and explain. \nA. Acoustic neuroma, B. Cholesteotoma, C. Meningioma, D. All of the above', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans: a (Acoustic neuroma)Ref: Dhingra E.N.T. 3rd /e p. 143 & 2nd/e p. 116', 'role': 'assistant'}]