Which Would Always Lead to an Increase in the Average

Which would always lead to an increase in the average kinetic energy of a gas?

A) Increasing the volume by decreasing the pressure.
B) Increasing the pressure by decreasing the volume.
C) Increasing the pressure by increasing the number of molecules of gas.
D) Increasing the volume by increasing the temperature of the gas.
E) All of the above are equally effective ways of increasing the average kinetic energy of a gas.