Which Statement Explains the Nature of Vitamins

Which statement explains the nature of vitamins?

A) Vitamins are inorganic substances needed by the body as sources of energy and for metabolism.
B) Vitamins are coenzymes that aid proteins in the process of energy maintenance and metabolism.
C) Vitamins are organic substances needed by the body for metabolism, growth, and maintenance.
D) Vitamins serve as regulators or adjusters of the enzymatic system that help support fats and CHOs.