A CD with a Diameter of 12

Multiple Choice

A CD with a diameter of 12.0 cm starts from rest and with a constant angular acceleration of 1.00 rad/sec² acquires an angular velocity of 5.00 rad/sec. The CD continues rotating at 5.00 rad/sec for 15.0 seconds and then slows to a stop in 12.0 second with a constant angular acceleration. What is the angular distance traveled by a point 4.00 cm from the center, at the time 10.0 seconds from the start?

A) 27.6 rad
B) 37.5 rad
C) 40.7 rad
D) 48.2 rad
E) 51.2 rad