Answer:
C.Hydrochloric Acid
Explanation:
hydrochronic acid is naturally in your stomach to help digest food
If by buffer you mean dilute or cancel out a 12 ph level is a base so you need to add the equal and opposite amount of acid to it....kind of like how -1+1=0
hope this helps im learning about this too!
A decrease in blood pressure could slow down the blood going to your heart causing nausea, blurred vision, and even fainting.
