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 anterior chamber is 
Select and explain. 
A. 0.31 ml, B. 0.06 ml, C. 0.6 ml, D. 0.25 ml
D: 0.25 ml
Answer: D: 0.25 ml 
Explanation: Volume of anterior chamber is 0.25 ml.
Volume of posterior chamber is 0.06 ml.