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
Most common cranial nerve involved in ophthalmoplegic migraine is: 
Select and explain. 
A. II nerve, B. III nerve, C. V nerve, D. VI nerve
B: III nerve
Answer: B: III nerve 
Explanation: Ans. III nerve