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: Physiology
The total volume of CSF is : 
Select and explain. 
A. 50 ml, B. 100m1, C. 150 ml, D. 275 ml
C: 150 ml
Answer: C: 150 ml 
Explanation: C i.e 150 ml