A Container Having a Volume of 1 $\degree$ C If the Helium Behaves Like an Ideal Gas, the Moles

A container having a volume of 1.0 m3 holds 5.0 moles of helium gas at 50 $\degree$ C. If the helium behaves like an ideal gas, the total energy of the system is:

A) 2.0* 104 J.
B) 2.5 *104 J.
C) 1.7 * 103 J.
D) 1.5 *103 J.
E) 4.0 * 104 J.