The correct option is A True
Carbohydrate is a polyhydroxy compound that has an aldehydic or a ketonic functional group either free or as hemiacetal or acetal. It has general formula Cn(H2O)x. The value of x and n is greater than 3. Carbohydrates on hydrolysis give polyhydroxy aldehydes or polyhdroxy ketones. Examples of carbohydrates include sugar, glycogen, starch cellulose, dextrins and gums.