Much of the Digestive System Relies on the Activity of Enzymes

Multiple Choice

Much of the digestive system relies on the activity of enzymes. The stomach secretions include an enzyme (pepsin) along with HCl to reduce the pH in the stomach to a pH of 2. When the food moves into the small intestine, there are multiple secretions to raise the pH to 7. How would this pH change affect the activity of the stomach enzyme, pepsin?

A) It would increase the activity of pepsin
B) It would denature pepsin.
C) There would be no change in the activity of pepsin.
D) The active site would be increased.