This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: CNS Tumors, Subject name: Surgery
[{'content': 'All of the following hereditary conditions predispose to CNS tumors, except: \nSelect and explain. \nA. Neurofibromatosis 1 and 2, B. Tuberous sclerosis, C. Von - Hippel - landau syndrome, D. Xeroderma pigmentosum', 'role': 'user'}, {'content': "Answer: D \nExplanation: Xeroderma pigmentosum is not a risk factor for brain tumor. Genetic abnormalities associated with brain tumors (RL not in MTV GT) RetinoblastomaQ Li-FraumeniQ NF-1 & 2Q MEN 1Q Turcot's syndromeQ VHL syndromeQ Gorlin syndromeQ Tuberous sclerosisQ", 'role': 'assistant'}]