A CD Has a Diameter of 12

Multiple Choice

A CD has a diameter of 12.0 cm. If the CD starts from rest and has a constant angular acceleration of 2.00 rad/sec^2, then the radial acceleration of a point 3.00 cm from the center of the CD after 3.00 sec is

A) 0.950 m/s².
B) 1.08 m/s².
C) 1.25 m/s².
D) 1.58 m/s².
E) 1.83 m/s².