A man carrying a monkey on his shoulder does cycling smoothly on a circular track of radius $$9$$ m and completes 120 revolutions in 3 minutes. The magnitude of centripetal acceleration of monkey is (in $$m/s^2$$) :

A

$$57600\pi^2 \text{ ms}^{-2}$$

B

Zero

C

$$4\pi^2 \text{ ms}^{-2}$$

D

$$16\pi^2 \text{ ms}^{-2}$$