What is the function of a carbohydrate?

to provide energy, store energy, build macromolecules, and spare protein and fat for other uses

Explanation:

Carbohydrates are the sugars, starches and fibers found in fruits, grains, vegetables and milk products. Though often maligned in trendy diets, carbohydrates —one of the basic food groups are important to a healthy diet

it would be c. xylem.

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