The Temperature (In Kelvins) of a Gas Is Doubled $\sqrt { 2 }$

Multiple Choice

The temperature (in kelvins) of a gas is doubled. An increase of a $\sqrt { 2 }$ factor is observed in

A) the rms speed.
B) the average speed.
C) the most probable speed.
D) All of the above are correct.
E) None of the above is correct.