This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neuroradiology, Subject name: Radiology
The most common brain tumor is 
Select and explain. 
A. Meningioma, B. Oligodendroglioma, C. Secondaries, D. Craniopharyngioma
C: Secondaries
Answer: C: Secondaries 
Explanation: Most common Brain tumors are Secondaries or metastasis Most Common primary Brain tumor is a Meningioma Most common intraparenchymal Brain tumor is Glioma Most common calcifying Brain tumors is Craniopharyngioma Most common intraparenchymal calcifying Brain tumors is Oligodendroglioma