Answer the following question given this paragraph: 

An example of a disaccharide is sucrose (table sugar), which consists of the monosaccharides glucose and fructose ( Figure below ). Other common disaccharides include lactose ("milk sugar") and maltose. Monosaccharides and disaccharides are also called simple sugars . They provide the major source of energy to living cells.


Q: What are monosaccharides and disaccharides also called?

 Choices:

- simple chemicals

- basic sugars

- complex sugars

- simple sugars

A:
simple sugars
