Which phrase describes the motion and attractive forces of ideal gas particles?

Answer is: random straight-line motion and no attractive forces.

An ideal gas is:

1) made up of molecules which are in constant random motion in straight lines.

2) all collisions are perfectly elastic, there is no loss of kinetic energy during the collision.

3) follows ideal gas law: p·V = n·R·T.

4) the gas particles have negligible volume.