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: Medicine
Most common nerve involved in intracranial aneurysm is : 
Select and explain. 
A. Trochlear, B. VII, C. VIII, D. Occulomotor
D: Occulomotor
Answer: D: Occulomotor 
Explanation: Answer is D (Occulomotor nerve): Progressively enlarging unruptured aneurysms most commonly involve the occulomotor nerve. This usually occurs from an expanding aneurysm at junction of post communicating aery and internal carotid aery. Otherwise however, remember : the most common nerve to be involved with raised I.C.T. is the abducent nerve or Vlth cranial nerve" (false localizing sign)