During the Time a Compact Disc (CD) Accelerates from Rest

Multiple Choice

During the time a compact disc (CD) accelerates from rest to a constant rotational speed of 477 rev/min, it rotates through an angular displacement of 0.250 rev. What is the angular acceleration of the CD?

A) 358 rad/s²
B) 126 rad/s²
C) 901 rad/s²
D) 866 rad/s²
E) 794 rad/s²