Which one is a polymer?
a)	Sucrose	b)	Glycogen	c)	Fructose	d)	Lactose

(b)

Glycogen is the main storage polysaccharide in animals. Like those of amylopectin, glycogen molecules are also large highly branched (branch points are  1-6 linkages) polymers of thousands of D-glucose residues linked by , 1-4 glycosidic bonds.