The correct answer is A. Cellulose.
Rayon is a manufactured fiber that is made from cellulose, a natural polymer found in plant cell walls. Cellulose is a long, chain-like molecule made up of glucose units. When cellulose is dissolved in a solution of sodium hydroxide, it forms a viscous liquid called cellulose xanthate. This liquid is then extruded through a spinneret into a bath of sulfuric acid, which causes the cellulose xanthate to precipitate out of solution and form fibers. These fibers are then washed and dried to produce rayon.
Pectin is a polysaccharide found in the cell walls of plants. It is a gel-forming substance that is used in jams and jellies to thicken and stabilize the product. Pectin is also used in some cosmetics and personal care products.
Glucose is a simple sugar that is found in the blood and is the body’s main source of energy. Glucose is also used in the production of starch and cellulose.
Amylase is an enzyme that breaks down starch into glucose. Amylase is found in saliva and pancreatic juice. It is also used in the production of beer and bread.