64. Which of the backbone repeated units of polysaccharides is not correct? (A) Amylose: (α1-4) Glc (B) Dextran: (α1-6) Glc (C) Glycogen: (α1-4) Glc (D) Cellulose: (β1-4) Glc (E) Chitin: (β1-4) Glc