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: Anatomy
[{'content': 'Number of pure motor nerves in the following:\n\nTrigeminal,Olfactory, trochlear, hypoglossal, glossopharyngeal,accessory,\nOptic, occulomotor \nSelect and explain. \nA. 2, B. 3, C. 4, D. 5', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]