What Is the Root Mean Squared Velocity of the Helium $^{\circ}$

Multiple Choice

What is the root mean squared velocity of the helium atom in one mole of an ideal gas at a pressure of 2.00 atmospheres and a temperature of 30 $^{\circ}$ C? (He = 4u)

A) 782 m/s
B) 846 m/s
C) 902 m/s
D) 940 m/s
E) 1374 m/s