Which of the Following Statements Concerning the Kinetic-Molecular Theory of Matter

Multiple Choice

Which of the following statements concerning the kinetic-molecular theory of matter is/are CORRECT?
1) Particles in a liquid vibrate back and forth about an average position.
2) Particles in a solid are packed closely together,but are not confined to specific positions.
3) Particles in a gas fly about randomly,colliding with themselves and the walls of their container.

A) 1 only
B) 2 only
C) 3 only
D) 1 and 2
E) 1,2,and 3