Which of the following units is used to measure liquid volume?

The unit used to measure liquid volume in measurement systems is the litre. The litre is a standard metric unit that quantifies the space a liquid occupies. It is widely used in various contexts, such as science, cooking, and industry, making it a fundamental measurement for liquids.

Other units listed, such as millilitres, also serve as measurements of liquid volume and are derived from the litre; however, the litre itself is the base unit commonly recognized. Understanding these units is crucial for anyone involved in medication administration or any field requiring precise liquid measurements.