Is matter conserved when there is the same amount before and after a change?

Matter is anything that has mass and takes up space.  Matter can change form through physical and chemical changes, but through any of these changes, matter is conserved. The same amount of matter exists before and after the change none is created or destroyed. This concept is called the Law of Conservation of Mass.

c, liquids evaporate, creating a gas

i think that the answer is c