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
Deafness is associated with all except - 
Select and explain. 
A. Cockayne's syndrome, B. Alstrom's syndrome, C. Alport's syndrome, D. Abetalipoproteinaemia
D: Abetalipoproteinaemia
Answer: D: Abetalipoproteinaemia 
Explanation: None