According to the kinetic theory

a) only particles of matter in the gaseous state are in constant motion

b) gas particles are relatively close together

c) there is no attraction between particles of a gas

d) gas particles lose energy when they collide

The correct answer is option (a).

Explanation:

Kinetic gas theory :

Volume occupied by the particle is negligible in comparison to the volume occupied by the gas.Particles of an ideal gas do not exert attractive force on each other and on the walls of the containers. Motion of these particle always remain constant and moves in a straight line.Collision between two gas particles is an elastic that is kinetic energy of the particle remains conserved.Kinetic energy of the gas particles directly depends upon on the absolute temperature.

Yes i think so not 100 percent sure though