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
[{'content': 'Which is the only phacomatosis to be inherited on an autosomal recessive basis: \nSelect and explain. \nA. Ataxia-telangiectasia, B. Sturge-Weber syndrome, C. von Hippel lindau syndrome, D. Neurofibromatosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. Ataxia-telangiectasia', 'role': 'assistant'}]