$\mathrm{A} C D$ Has a Diameter Of $12.0 \mathrm{~cm}$ If The Has

Multiple Choice

$\mathrm{A} C D$ has a diameter of $12.0 \mathrm{~cm}$ . If the $\mathrm{CD}$ is rotating at a constant frequency of 6.00 rotations per second, then the angular speed is

A) $26.9 \mathrm{rad} / \mathrm{s}$ .
B) $21.5 \mathrm{rad} / \mathrm{s}$ .
C) $37.7 \mathrm{rad} / \mathrm{s}$ .
D) $33.3 \mathrm{rad} / \mathrm{s}$ .
E) $29.6 \mathrm{rad} / \mathrm{s}$ .