Which statement BEST describes the motion of the molecules of a solid object
A They vibrate in place within a fixed volume.
B They move around freely within a fixed volume.
C They vibrate in place and take the shape of a container.
D They move around freely and take the shape of a container.
It would be letter C, because the molecules of solids can have a little vibration in their places. The first one is for gas, so it's wrong. The second one is for liquids. And finally, the third one is right.
