Which of the following statements concerning the kinetic-molecular theory are correct?

(1) Particles of a liquid are closely spaced but are not confined to specific positions
(2) Particles in a solid vibrate back and forth about an average position
(3) A solid melts when its temperature is raised to the point at which the particles vibrate fast enough and far enough to push one another out of the ordered arrangement

A 2 and 3 only
В 10nly
C 2 only
D 1, 2, and 3
E 1 and 2 only