Please Help! Explain if possible :-)
A child’s pool is in the shape of a rectangular prism with a height of 2 ft and a base that is 4 ft wide by 5 ft long.

During the course of the summer, the child’s pool needed to be filled 3 times.

How many cubic feet of water were needed to fill the pool during the summer?

A. 40ft³
B. 80ft³
C. 120ft³
D. 160ft³