Which among the following is incorrect about polysaccharides?

• A. Cellulose can t be digested by mammals unless they contain microbes that digest cellulose in their gut
• B. Polysaccharides mainly act as the food storage or structural materials
• C. Starch comprises of two forms, namely, amylose (water insoluble) and amylopectin (water soluble)
• D. Amylopectin has -1, 4-linkage and 1, 6-glycosidic linkage