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': 'Acoustic neuroma commonly arises from which of the following nerve? \nSelect and explain. \nA. Superior division of vestibular nerve, B. Inferior division of vestibular nerve, C. Cochlear nerve, D. IXth nerve', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Vestibular schwannomas (Acoustic neuroma) arise predominantly from the superior half of the vestibular poion of the vestibulocochlear nerve (cranial nerve VIII).', 'role': 'assistant'}]