Which postulate of kinetic molecular theory best supports Boyle's Law relating pressure to volume (at constant moles and temperature)? O Molecules are in constant, random, straight-line motion Collisions of gas molecules are perfectly elastic (i.e. conserve total KE) The volume of a molecule is negligible compared to the total volume There are no attractive or repulsive forces acting between gas molecules Temperature depends only on the average kinetic energy of the gas molecules