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 is the only phacomatosis to be inherited on an autosomal recessive basis: 
Select and explain. 
A. Ataxia-telangiectasia, B. Sturge-Weber syndrome, C. von Hippel lindau syndrome, D. Neurofibromatosis
A: Ataxia-telangiectasia
Answer: A: Ataxia-telangiectasia 
Explanation: Ans. Ataxia-telangiectasia