The edge of each cube used to build this rectangular prism is 13 inch long. Which equation shows the volume of the prism, in cubic inches?
A. ( 3 and 1/3 x 2 and 1/3 ) in. 3 = 25 and 25/27 in.3
B. ( 3/3 x 2/3 x 3/3 ) in. 3 = 2/3 in. 3
C. ( 3 x 2 x 3 ) in. 3 - 18 in. 3
D. ( 9/3 x 6/3 x 6/3 ) in. 3 = 12 in. 3