This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T., Subject name: Physiology
[{'content': 'Which of the following has highest pH: \nSelect and explain. \nA. Pancreatic juice, B. Gastric juice, C. Gallbladder bile, D. Saliva', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. A. Pancreatic juiceBody secretionpH* Pancreatic juice8* Gastric juice1* Saliva7* Hepatic duct bile7.8-8.6* Gallbladder bile7.0-7.4', 'role': 'assistant'}]