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
[{'content': 'True about Acoustic neuroma - \nSelect and explain. \nA. Malignant tumor, B. Arises from vestibular nerve, C. Upper pole displaces IX,X,XI nerves, D. Lower pole displaces trigeminal cranial nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Here Option a i.e. malignant tumor is incorrect as acoustic neuroma is a benign tumor.\nOption b: It arises from vestibular nerve is correct\nOption c: Upper pole displaces IX, X and XI nerve–incorrect, as is evident from the diagram given in the text: Upper pole displaces III, IV and V nerve whereas lower pole displaces IX, X and XI nerve.', 'role': 'assistant'}]