Refer to the Figure Showing the Active Transport of H⁺

Refer to the figure showing the active transport of H⁺ ions in the stomach. Based on the figure, one can conclude that the reactions occurring in the parietal cells

A) cause the cytoplasm of parietal cells to become highly acidic.
B) result in raising the pH of the blood.
C) result in raising the pH of parietal cells.
D) cause the lumen of the gastric pit to have high concentrations of potassium.
E) cause HCl to form in the parietal cell.