The Correct Ranking of the Magnitudes of the Average Speed

Multiple Choice

The correct ranking of the magnitudes of the average speed, the most probable speed, and the root-mean-square speed for an ideal gas is

A) average < most probable < root-mean-square.
B) root-mean-square < average < most probable.
C) root-mean-square < most probable < average.
D) most probable < root-mean-square < average.
E) most probable < average < root-mean-square.