Indicate the correct statement for a 1-L sample of \[{{N}_{2}}(g)\] and \[C{{O}_{2}}(g)\] at 298 K and 1 atm pressure

• A.                 The average translational KE per molecule is the same in \[{{N}_{2}}\] and \[C{{O}_{2}}\]
• B.                 The rms speed remains constant for both \[{{N}_{2}}\] and \[C{{O}_{2}}\]
• C.                 The density of \[{{N}_{2}}\] is less than that of \[C{{O}_{2}}\]
• D.                 The total translational KE of both \[{{N}_{2}}\] and \[C{{O}_{2}}\] is the same