How does changing the temperature affect the chemical reaction?

a) solobility of the solutes and the reaction rate are increased as the temperature of the reaction is decreased
b) lowering the temperature of the chemical reaction increases the concentration of the solute and the reaction rate
c) raising the temperature of the reaction increases the reaction rate by increasing the energy and frequency of collisions
d) concentration of the solute and pressure of the solution decreases as the temperature of the chemical reaction increases