The correct option is
D Both A and C
Cellulose is a polysaccharide. It is formed by the linkage of beta 1,4 linkage of a glucose unit. It is an important component of a cell wall of the plant. It does not have free aldehyde group so they are non reducing sugar. It is a fibrous polysaccharide as it exists in form of long chain-like structure and is mainly found in plants. Tunicates are also known as Urochordata. It is covered by tunic which is made up of proteins, carbohydrates, and tucin which is made up of cellulose. It is able to produce cellulose by cellulose synthesizing enzyme.
So, the correct answer is option D.