Joe is trying to find out how many cubic centimeters of sand he can fit in a hole he dug in his backyard. The size of the hole is shown in the diagram. Which of the equations will yield the correct answer?
A) V = 9.1(2.2)(3.8)
B) V = 9.1(2.2 + 3.8)
C) V = 9.1 + 2.2 + 3.8
D) V = 1/2(9.1)(2.2)(3.8)