This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Disease of External Nose & Nasal Septum, Subject name: ENT
[{'content': 'Alternative for SMR: \nSelect and explain. \nA. Tympanoplasty, B. Septoplasty, C. Caldwell-Luc operation, D. Turboplasty', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (b) Septoplasty(Ref. Cummings, 6th ed., 481)Septoplasty is more conservative procedure than SMR and is the preferred surgery for DNS.', 'role': 'assistant'}]