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: Unknown
Most common malignant brain tumor 
Select and explain. 
A. Astrocytoma, B. Glioblastoma multiforme, C. Oligodendroglioma, D. Ependymoma
B: Glioblastoma multiforme
Answer: B: Glioblastoma multiforme 
Explanation: Ans. B Glioblastoma multiforme Ref: Sabiston.Page 1371 The following data should be remembered for brain tumors- Most common malignant Brain tumor: Secondaries > Gliomas > Meningiomas > Astrocytomas.