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
Which of the following biological fluids has the highest pH value? 
Select and explain. 
A. Bile, B. Pancreatic juice, C. Saliva, D. Gastric juice
B: Pancreatic juice
Answer: B: Pancreatic juice 
Explanation: Pancreatic juice is alkaline and has the highest pH (7.8 - 8.0). Pancreatic juice is alkaline in nature due to the high concentration of bicarbonate ions.