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: Surgery
[{'content': 'Plexiform neurofibromatosis commonly affects... \nSelect and explain. \nA. Facial nerve, B. Trigeminal nerve, C. Peripheral nerve, D. Glossopharyngeal nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]