Two Moles of a Monatomic Gas with an Rms Speed

Two moles of a monatomic gas with an rms speed of 294 m/s are contained in a tank that has a volume of 0.12 m³. If each gas particle has a mass of 8.220 × 10^-26 kg, what is the absolute pressure of the gas?

A) 2.1 × 10⁵ Pa
B) 1.1 × 10⁴ Pa
C) 4.8 × 10⁴ Pa
D) 2.4 × 10⁴ Pa
E) 3.0 × 10⁴ Pa