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': "Sensorineural deafness seen in -\n(a) Alport's syndrome\n(b) Pendred syndrome\n(c) Treacher - Collins syndrome\n(d) Crouzon's disease\n(e) Michel’s aplasia \nSelect and explain. \nA. abcd, B. bcda, C. abce, D. bcda", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Causes of Congenital Deafness\nConductive hearing loss\n\nMeatal atresia\nFixation of stapes footplate\nFixation of malleus head\nCongential cholesteatoma\nOssicular discontinuity\nCrouzons syndrome\nAperts syndrome.\n\nMnemonic\nSensorineural Hearing Loss', 'role': 'assistant'}]