Which variant of carbohydrates is primarily made of sugars?

Carbohydrates can be classified into different categories based on their structure and the number of sugar units they contain. Monosaccharides, disaccharides, and polysaccharides are all types of carbohydrates that are fundamentally derived from sugars.

Monosaccharides are the simplest form of carbohydrates, consisting of single sugar molecules such as glucose or fructose. Disaccharides are formed by the combination of two monosaccharides, like sucrose composed of glucose and fructose. Polysaccharides are more complex carbohydrates, made up of long chains of monosaccharide units, such as starch and glycogen.

Since all of these variants are made up of sugars, it follows that all of them can be classified under carbohydrates that are predominantly comprised of sugar units, making the correct answer encompass the full range of carbohydrate types listed.