Recall that work is defined to be force times distance, and that the weight (force) of a liquid is equal to its volume times its density. A fishtank has a rectangular base of width 2 feet and length 6 feet and sides of height 5 feet. If the tank is filled with water weighing 62.5 lb per cubic foot, the work required to pump all the water just over the top of the tank is: O A. 9375.0 ft-lb O B. 865.5 ft-lb C. 781.25 ft-lb D. 3750.0 ft-lb O E. 150.0 ft-lb