This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: ENT
[{'content': 'Surgery to widen the cailaginous pa of EAC \nSelect and explain. \nA. Myringoplasty, B. Meastoplasty, C. Otoplasty, D. Tympanoplasty', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Meatoplasty- Operation in which crescent of conchal cailage is excised to widen the meatus. Myringoplasty is repair of a perforation of the tympanic membrane (the pars tensa). (TYMPANUM=Middle ear) Tympanoplasty is ossicular reconstruction with myringoplasty. Otoplasty is Reconstruction of Pinna', 'role': 'assistant'}]