A scuba diver descended at a rate of 2 1/4 feet per second. If 0 represents The surface of The Walter and distance is below the surface are negative, which expression represents one way to calculate the location of the river after 12 1/2 seconds?
A) 12 1/2 - 2 1/4
B) 12 1/2 + 2 1/2
C) 12 1/2 x 2 1/2
D 12 1/2 x (-2 1/4)