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
Maximum Na+ concentration occurs in 
Select and explain. 
A. Pancreatic secretion, B. Small intestinal secretion, C. Bile, D. Large intestinal secretion
C: Bile
Answer: C: Bile 
Explanation: Maximum Na+ concentration is seen in Bile > Pancreatic secretion > Small intestinal secretion.