The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/h completes one round in 8 minutes, find the area of the park in square metres.

A

153600 $$m^2$$

B

15360 $$m^2$$

C

30720 $$m^2$$

D

307200 $$m^2$$