contestada

Which statement about proteins is true?
A.) Collagen is a structural protein and hemoglobin is a protein involved in the transport of oxygen.

B.) Glycogen is a structural protein and collagen is a protein involved in the transport of oxygen.

C.)Glycogen is a structural protein and hemoglobin is a protein involved in the transport of oxygen.

D.)Hemoglobin is a structural protein and collagen is a protein involved in the transport of oxygen.