This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.N.S, Subject name: Medicine
Most common nerve involved in intracranial Aneurysm is 
Select and explain. 
A. IIICN, B. VI CN, C. VCN, D. VI CN
D: VI CN
Answer: D: VI CN 
Explanation: *in Subarachinoid hemorrhage ,a third nerve palsy may be present due to local pressure from an aneurysm of posterior communicating aery. *85% of SAH are caused by saccular or berry aneurysm. Ref Harrison20th edition pg 2345