when a liquid becomes a gas, the process is called: c. evaporation
the answer would be solid.
there are three essential states of matter:solidliquidgas
in a solid, the particles are seen to be in a strict orderly arrangement, and only show restricted movement about their place.
in a liquid, the particles do not have a particular arrangement, and have a more free movement with respect to solid, and can change their position through the sample.
in a gas, the particles are most widely spaced, and have no defined arrangement. they have the most free movement of the other two states.
see the attached picture for a clearer idea.
hope this !