Correct Answer: Enzymes

Solution : The correct option is Enzyme .

Oxidoreductases, transferases, and hydrolases are types of enzymes that play key roles in numerous biochemical processes. These enzyme classes are necessary for a variety of biological functions, including signal transduction, digestion, and energy production.

• Oxidoreductases: catalyse oxidation-reduction reactions.
• Transferases: facilitate the transfer of functional groups from one molecule to another.
• Hydrolases: catalyze hydrolysis reactions.