They all hold liquids. They can all be made of glass. They can all be marked in milliliters. They can all be used to measure the volume of a liquid.
What is the most important thing a cylinder, a measuring cup, and a beaker all have in common?

Options:
- They all hold liquids.
- They can all be made of glass.
- They can all be marked in milliliters.
- They can all be used to measure the volume of a liquid.

They can all be used to measure the volume of a liquid.