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
Volume of the vitreous is: 
Select and explain. 
A. 2 mL, B. 3 mL, C. 4 mL, D. 7 mL
C: 4 mL
Answer: C: 4 mL 
Explanation: Ans. 4 mL