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
Most radiosensitive brain tumour is 
Select and explain. 
A. Ependymoma, B. Medulloblastoma, C. Glioblastoma multiforme, D. Astrocytoma
A: Ependymoma
Answer: A: Ependymoma 
Explanation: 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