A point P moves in counter-clockwise direction on a circular path as shown in the figure. The movement of 'P' is such that it sweeps out a length $$s = t^3 + 5$$, where $$s$$ is in metres and $$t$$ is in seconds. The radius of the path is $$20$$ m. The acceleration of 'P' when $$t = 2$$ s is nearly

A

$$13$$ m/s$$^2$$

B

$$12$$ m/s$$^2$$

C

$$7.2$$ m/s$$^2$$

D

$$14$$ m/s$$^2$$