An underground water storage tank is built in the shape of a triangular prism. the base of the triangle is 10 feet, and the height of the triangle is 13 feet. the height of the prism is 15 feet. if each cubic foot of water weighs 62.41 pounds, what is the weight of the water in the tank when it is at 90% capacity?

A. 60,849.8 pounds
B. 54,764.8 pounds
C. 975 pounds
D. 877.5 pounds