A line rotates in a horizontal plane according to the equation θ = 2t3 - 6t, where θ is the angular position of the rotating line, in radians, and t is the time, in seconds. Determine the angular ac

A line rotates in a horizontal plane according to the equation θ = 2t3 - 6t, where θ is the angular position of the rotating line, in radians, and t is the time, in seconds. Determine the angular acceleration when t = 2 sec.

A. 24 radians per sec2

B. 12 radians per sec2

C. 18 radians per sec2

D. 6 radians per sec2