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 longest extraocular muscle is: 
Select and explain. 
A. Superior oblique, B. Inferior oblique, C. Superior rectus, D. Inferior rectus
A: Superior oblique
Answer: A: Superior oblique 
Explanation: Ans. Superior oblique