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
CSF does not pass through ? 
Select and explain. 
A. Ventricles, B. Venous sinuses, C. Epidural spaces, D. Subarachnoid space
C: Epidural spaces
Answer: C: Epidural spaces 
Explanation: C i.e. Epidural space