The area of the four walls of a room is 1152 $$m^{2}$$ and its length is $$\frac{5}{3}$$ times its breadth. If the height of the room is 12 m,then the area of its floor is:

A

$$580m^{2}$$

B

$$520m^{2}$$

C

$$540m^{2}$$

D

$$560m^{2}$$