Air is made up primarily of nitrogen and oxygen. In an enclosed room with a constant temperature, which of the following statements is correct concerning the nitrogen and oxygen gases?

(A) The nitrogen gas molecules have a higher average kinetic energy than the oxygen gas molecules.

(B) The nitrogen gas molecules have the same average kinetic energy as the oxygen gas molecules.

(C) The nitrogen gas molecules have a lower average kinetic energy than the oxygen gas molecules.

(D) More information is necessary to compare the average kinetic energies of the two gases.