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': 'In malignant otitis externa which nerve commonly affected ? \nSelect and explain. \nA. Abducent, B. Facial, C. Auditory, D. Vagus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Most commonly facial nerve is involved. Other cranial nerves can also be involved (glossopharyngeal, vagus, spinal accessory, hypoglossal, abducens, trigeminal).', 'role': 'assistant'}]