The correct option is D All the above
Chitin is a polysaccharide, found in the cell wall of the fungi, and if so its insoluble in water because if does not have any free -OH group to forms hydrogen bonds with water. Chitin is also resistant to acids and alkalies and insoluble in most of the organic solvents. Chitin is the polymer that can be found in anything from the shells of beetles to webs of spiders. It is the second most abundant polymer after the cellulose.
So the correct option is 'All of the above'.