As the Temperature of a Reaction Is Increased, the Rate

As the temperature of a reaction is increased, the rate of the reaction increases because the ________.

A) reactant molecules collide less frequently
B) reactant molecules collide more frequently and with greater energy per collision
C) activation energy is lowered
D) reactant molecules collide less frequently and with greater energy per collision
E) reactant molecules collide more frequently with less energy per collision