Which of These Gases (Ar, N₂O, H₂) Has the Same $\circ$

Which of these gases (Ar, N₂O, H₂) has the same average kinetic energy at 25 ^$\circ$ C as CO₂?

A) Ar
B) N₂O
C) H₂
D) They are all the same as CO₂.
E) They are all different from CO₂.