What is the primary function of glycoside hydrolases in molecular biology?

A. To hydrolyse the glycosidic bond between two or more carbohydrates, or between a carbohydrate and a non-carbohydrate moiety
B. To form covalent bonds between amino acids
C. To classify glycoside hydrolases based on sequence similarity
D. To synthesize the glycosidic bond between two or more carbohydrates
Answer: 