This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
Most common Primary Brain tumor is 
Select and explain. 
A. Glioma, B. Glioblastoma, C. Meningioma, D. Medulloblastoma
A: Glioma
Answer: A: Glioma 
Explanation: (A) Glioma