Explanation:
(c) Inulin is a heterogeneous collection of fructose polymers. It consists of glucosyl moiety and fructosyl moiety, which are linked by $\beta \left( 2,1 \right)$ bonds. It is a soluble dietary fibre which is a naturally occurring oligosaccharide belonging to a group of carbohydrates known as fructans. Unlike most carbohydrates, inulin is non-digestible.
Inulin is naturally present in many different.foods such as asparagus, leek, onions, banana, wheat and garlic. Higher concentrations exist in herbs.