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': 'Acoustic neuroma commonly arises from \nSelect and explain. \nA. Superior division of vestibular nerve, B. Inferior division of vestibular nerve, C. Cochlear nerve, D. VIIth nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Acoustic neuroma commonly arises from vestibular nerve and rarely from the cochlear division of the 8th nerve. Ref: Textbook of diseases of Ent, PL Dhingra, 7th edition, pg. 125', 'role': 'assistant'}]