Correct option is B
Bile in the gall bladder has the highest pH, typically ranging between 7.6 to 8.8, making it alkaline. Bile aids in the digestion of fats and is stored in the gall bladder.
Gastric juice has a very low pH (1.5 to 3.5), making it highly acidic to break down food in the stomach.
Pancreatic juice has a pH of around 7.5 to 8, which is slightly alkaline, helping neutralize stomach acid as it enters the small intestine.
Saliva generally has a pH of around 6.5 to 7.5, making it neutral to slightly acidic.