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: Surgery
Which of the following is the most common tumor of brain? 
Select and explain. 
A. Glioma, B. Meningioma, C. Cerebral metastasis, D. None of the above
C: Cerebral metastasis
Answer: C: Cerebral metastasis 
Explanation: Cerebral metastases are by far the most common intracranial tumours and will affect approximately one in every four cancer sufferers. They tend to occur in the fifth to seventh decades.