The Angular Velocity of a Rotating Wheel Increases 2 Rev/s $\pi$

Multiple Choice

The angular velocity of a rotating wheel increases 2 rev/s every minute.The angular acceleration of this wheel is:

A) 4 $\pi$ ² rad/s²
B) 2 $\pi$ rad/s²
C) 1/30 rad/s²
D) 2 $\pi$ /30 rad/s²
E) 4 $\pi$ rad/s²