Maltase is an enzyme that catalyzes the hydrolysis of the disaccharide maltose. This process occurs during human digestion when maltase is secreted by the intestine and then converts maltose into glucose. Which two classes of biomolecules are directly involved in this process?

A .proteins and carbohydrates

B. lipids and proteins

C. carbohydrates and nucleic acids

D. carbohydrates and lipids