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 amount of K+ ion is seen in which GI secretion ? \nSelect and explain. \nA. Saliva, B. Colonic, C. Gastric, D. Jejunal', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Saliva", 'role': 'assistant'}]