Which statement is true about the chemical structure of DNA?A. It is made up mostly of water.B. It is a complex carbohydrate.C. It contains instructions for making proteins.D. It stores energy for a cell’s chemical reactionsWhich statement is true about the chemical structure of DNA?A. It is made up mostly of water.B. It is a complex carbohydrate.C. It contains instructions for making proteins.D. It stores energy for a cell’s chemical reactions