Which statement correctly distinguishes starch, glycogen, and cellulose?

• A. Glycogen is a protein; starch is a lipid.
• B. Starch and glycogen are storage polysaccharides with α-linkages; cellulose is a structural β-1,4 polysaccharide forming plant cell walls.
• C. Cellulose is a storage polysaccharide with α-linkages.
• D. Starch is a structural polymer, while cellulose is storage.

Answer: (B)