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: Pediatrics
[{'content': 'Tumor associated with best prognosis in children is- \nSelect and explain. \nA. Medulloblastoma, B. Ependymoma, C. Cerebellar astrocytoma, D. Glioblastoma-multiformis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cerebellar astrocytoma is the most common posterior fossa tumor and has the best prognosis\nWorst prognosis is seen with --> Brain-stem glioma.', 'role': 'assistant'}]