Which one of the following gases possesses the largest internal energy
A. `2` moles of helium occupying `1 m^(3) at 300 K`
B. `56` kg of nitrogen at `107 Nm^(-2) and 300 K`
C. `8` grams of oxygen at `8 atm 300 K`
D. `6 xx 10^(26)` molecules of argon occupying `40 m^(3) at 900 K`