Answer:
C) Liquids and gases
Explanation:
<em>The correct answer would be liquids and gases.</em>
<u>The molecules of liquids and gases move randomly when held in a container. The random movement causes a collision between the molecules of the liquids/gases and between the walls of the container, creating pressure in the process. </u>This is unlike the molecules of solids that vibrate about fixed positions.
Hence, the correct option is C.
