Concept:Oligosaccharides are carbohydrates that release a specific, small number of sugar units when broken down by water (hydrolysis).
Explanation:Hydrolysis splits a carbohydrate into its building blocks called monosaccharides.
Oligosaccharides yield 2 to 10 monosaccharide units upon hydrolysis.
They are made of a few monosaccharides linked by glycosidic bonds.
Common examples are disaccharides like sucrose (glucose + fructose), lactose (glucose + galactose), and maltose (glucose + glucose).
Other types of carbohydrates: Monosaccharides give only 1 unit on hydrolysis and cannot be broken further (e.g., glucose).
Polysaccharides give more than 10 units on hydrolysis (e.g., starch, cellulose).
Carbohydrates that yield no monosaccharide units do not exist because all carbohydrates can be hydrolyzed to monosaccharides.
Answer:Carbohydrates that yield two to ten monosaccharide units on hydrolysis (Option C).