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': "All of them use tonsillectomy as important step except \nSelect and explain. \nA. Transection of Glossopharyngeal nerve, B. Eagle's syndrom, C. In Treating sleep apnoea, D. Transection of vagus Nerve", 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]