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
[{'content': 'Maximum Na+ concentration occurs in \nSelect and explain. \nA. Pancreatic secretion, B. Small intestinal secretion, C. Bile, D. Large intestinal secretion', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Maximum Na+ concentration is seen in Bile > Pancreatic secretion > Small intestinal secretion.', 'role': 'assistant'}]