The Graph Below Shows a Plot of Angular Velocity in Rad/s

Multiple Choice

The graph below shows a plot of angular velocity in rad/s versus time in s from t = 0 s to t = 7 s.
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Use this exhibit to answer the following question(s) .
-The change in angular position, Δθ, during the 7-second period is

A) 21 rad, CW.
B) 21 rad, CCW.
C) 30 rad, CW.
D) 30 rad, CCW.
E) 39 rad, CCW.