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: Ophthalmology
III nerve palsy with pupillary sparing is seen in : 
Select and explain. 
A. Craniopharyngioma, B. Hypeension, C. Aneurysm of post. communicating aery, D. DM
D: DM
Answer: D: DM 
Explanation: D i.e. DM