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: Medicine
Which of the following disorder is not autosomal dominant 
Select and explain. 
A. Huntington's chorea, B. Neurofibromatosis -2, C. Tuberous sclerosis, D. Friedrich ataxia
D: Friedrich ataxia
Answer: D: Friedrich ataxia 
Explanation: Friedrich ataxia - Autosomal recessive.