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': 'Medulloblastoma exclusively occurs in the:- \nSelect and explain. \nA. Medulla, B. Cerebellum, C. Cerebral hemisphere, D. Spinal cord', 'role': 'user'}, {'content': 'Answer: B \nExplanation: MEDULLOBLASTOMA MC malignant brain tumor of childhood: Medulloblastoma Medulloblastoma is most radiosensitive brain tumor MC site : Vermis (75%) MC site in adults: lateral cerebellar hemisphere', 'role': 'assistant'}]