This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
[{'content': 'Most radiosensitive brain tumour is \nSelect and explain. \nA. Ependymoma, B. Medulloblastoma, C. Glioblastoma multiforme, D. Astrocytoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: pediatric ependymomas, GTR with adjuvant local radiotherapy has been established as the standard treatment, especially for tumors located in the posterior fossa . Radiotherapy is an impoant treatment modality due to the radiosensitivity of ependymomas. Ref Harrison20th edition pg 1316', 'role': 'assistant'}]