Maltodextrins?

Q & A section:
A maltodextrin is a nonsweet nutritive saccharide polymer that consists of D-glucose units linked primarily by (alpha)-1,4 bonds and that has a dextrose equivalent (DE) of less than 20.
 * 1. What is a maltodextrin?**

a) Bulking agents b) Humectants c) Dispersing aids d) Viscosifiers e) Flavor carriers
 * 2. List 5 roles of maltodextrins in foods.**