Fact 1: Agraduated cylinder is used to measure volume of a liquid.

Fact 2: Volume is typically measured in liters or milliliters.

Given the two facts above, answer the question "What could be used to to measure how many milliliters something is?" with the following options: 
- solid, liquid, gas
 - A graduated cylinder
 - objects that have mass
 - an electron microscope
 - The bending of a ray of light
 - deoxyribonucleic acid
 - a hydraulic system
 - microscope


 

  A graduated cylinder       