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
Blood supply of prelaminar optic nerve is 
Select and explain. 
A. Short posterior ciliary arteries, B. Branch retinal artery, C. Ophthalmic artery, D. Meningeal arteries
A: Short posterior ciliary arteries
Answer: A: Short posterior ciliary arteries 
Explanation: None