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: Medicine
[{'content': 'Most common nerve involved in intracranial aneurysm is - \nSelect and explain. \nA. Trochlear, B. VII, C. VIII, D. Occulomotor', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]