The Graph Below Shows a Plot of Angular Acceleration in Rad/s²

The graph below shows a plot of angular acceleration in rad/s² versus time from t = 0 s to t = 8 s.The change in angular velocity, $\Delta$$\omega$ ,during this 8-second period is

A) $18 \frac { \mathrm { rad } } { \mathrm { s } }$ ,CW.
B) $18 \frac { \mathrm { rad } } { \mathrm { s } }$ ,CCW.
C) $23 \frac { \mathrm { rad } } { \mathrm { s } }$ ,CW.
D) $23 \frac { \mathrm { rad } } { \mathrm { s } }$ ,CCW.
E) $31 \frac { \mathrm { rad } } { \mathrm { s } }$ ,CW.

Correct Answer:

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