A scale drawing of a playground is shown below.

PLAYGROUND


KEY
1 in. = 40 ft.

2.5 in.
3 in.
1 in.
4.5 in.

Using this scale, from inches (in.) to feet (ft), what is the area, of the playground?

A. 19,200
B. 17,600
C. 15,200
D. 12,000