Elisha sprays a very small amount of perfume into the air, and it reaches Malachi’s nose who is sitting a meter away from her. Which of the following postulates of KMT explains this?

A. The particles of gas do not exert any force of attraction or repulsion on each other. There is no energy loss during a collision.
B. All particles are infinitely small, and the size of a particle is negligible compared to the spaces between them.
C. The particles of gas are in constant motion and move in straight lines
D. The total kinetic energy of the particles is directly proportional to absolute temperature.​