This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: ENT
[{'content': 'widening of the the cailaginous pa of the external auditory canal ? \nSelect and explain. \nA. otoplasty, B. myringoplasty, C. tympanoplasty, D. meatoplasty', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Z memamtoplasty conchal incision incision extend to superior ear canal', 'role': 'assistant'}]