Answer;
Pepsin works best at very low pH values.
Explanation;
-The stomach provides an acidic environment in which these enzymes work best. Pepsin is an enzyme that is specifically a proteolytic enzyme, meaning it helps digest proteins. Cells in the stomach secrete pepsin to help you digest the protein that you consume in food. It's secreted by specialized cells in the lining of the stomach called chief cells and works best at the low pH of the stomach.
