This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics, Subject name: Pathology
[{'content': 'Which is the most common tumor associated with type I neurofibromatosis? \nSelect and explain. \nA. Optic nerve glioma, B. Meningioma, C. Acoustic schwannoma, D. Low grade astrocytoma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. (a) Optic nerve glioma(Ref: Robbins 9th/pg 298)NF1 patients have increased risk of Meningioma Q, Pheochromocytoma Q & Wilm's Tumor QMost common tumor in NF1 is optic nerve glioma QMost common Leukemia in NF1 is JMML Q (Juvenile Myelomonocytic Leukemia)", 'role': 'assistant'}]