Cotton is a polymer of:
Cotton is a soft fibre that grows around the seeds of the cotton plant. The fibre is most often spun into thread and used to make a soft, breathable textile. Cotton is a valuable crop because only about 10% of the raw weight is lost in processing. Once traces of wax, protein, etc. are removed, the remainder is a natural polymer of pure cellulose. This cellulose is arranged in a way that gives cotton unique properties of strength, durability, and absorbency. Each fibre is made up of twenty to thirty layers of cellulose coiled in a neat series of natural springs.
Cotton is composed of pure cellulose, a naturally occurring polymer. Cellulose is a carbohydrate, and the molecule is a long chain of glucose (sugar) molecules.
Hence, option C is correct.