Which unit is used to measure liquids?

Liters are the standard unit of measurement for liquids in the metric system. This unit specifically quantifies the volume of a liquid and is widely used in various contexts, such as cooking, chemistry, and everyday life. For example, when you buy a bottle of soda or water, the volume is typically expressed in liters or milliliters.

The other options represent measurements suited for different purposes: kilograms measure mass, meters measure length, and grams also measure mass. Thus, liters stand out as the most appropriate choice for measuring the volume of liquids.