The correct option is D Pepsin
A gastric chief cell (also known as a zymogenic cell or peptic cell) is a cell in the stomach that releases pepsinogen and chymosin (rennin).
Salivary amylase is an enzyme found in saliva that breaks down starch to maltose. Mucus, a slimy secretion rich in glycoproteins and water predominantly produced by the mucous glands of the epithelial cells is also present in saliva. Lysozyme is an enzyme with anti-bacterial properties and is present in saliva.