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
Which nerve is most commonly affected in diabetic mononeuropathy: March 2013 
Select and explain. 
A. Optic, B. Oculomotor, C. Facial, D. Vagus
B: Oculomotor
Answer: B: Oculomotor 
Explanation: Ans. B i.e. Oculomotor