Cellulose is a polymer of (BITSAT 2007)

Cellulose is a major polysaccharide in higher plants where it constituents the bulk of the cell wall. Cellulose is a straight-chain polysaccharide composed of only β- D-glucose units, which are joined by the β- glycosidic linkage between the one glucose units. The general depiction of cellulose polymer is as shown below, Thus, (a) is the correct option.