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 amount of K+ ion is seen in which GI secretion ? 
Select and explain. 
A. Saliva, B. Colonic, C. Gastric, D. Jejunal
A: Saliva
Answer: A: Saliva 
Explanation: Ans. is 'a' i.e., Saliva