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: Anatomy
The rate of formation of CSF per day: 
Select and explain. 
A. 1000 c.c., B. 2000 c.c., C. 5000 c.c., D. 8000 c.c.
C: 5000 c.c.
Answer: C: 5000 c.c. 
Explanation: 5000 c.c.