This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cerebrovascular Diseases, Subject name: Surgery
Most common cause of subarachnoid hemorrhage is:- 
Select and explain. 
A. Hypeension, B. AV malformation, C. Berry aneurysm, D. Tumors
C: Berry aneurysm
Answer: C: Berry aneurysm 
Explanation: MC cause of subarachnoid hemorrhage : Trauma > Spontaneous rupture of Berry Aneurysm