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
The nerve which has the longest intracranial course is: 
Select and explain. 
A. Fouh cranial nerve, B. Third cranial nerve, C. Sixth cranial nerve, D. Fifth cranial nerve
A: Fouh cranial nerve
Answer: A: Fouh cranial nerve 
Explanation: Ans. Fouh cranial nerve