Final answer:
To achieve high gloss in an end product, cornstarch is the best type of starch to use thanks to its properties and the dextrins that are produced when it is applied and heated.
Step-by-step explanation:
If you want high gloss in your end product, the type of starch to use is cornstarch (a). Starch is a carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. Its composition includes two molecules: amylose and amylopectin. Dextrins, which are partially hydrolyzed starches, impart shine to materials when used properly. Although tapioca (b), arrowroot (c), and Cleargel (d) are also types of starch that can be used in food products, cornstarch is particularly effective when a glossy finish is desired.