Answer:
Option B
Step-by-step explanation:
step 1
Find the number of cubes in the prism

step 2
Find the volume of one cube
The volume of one cube is equal to

where
b is the length side of the cube
we have

substitute


step 3
To find out the volume of the prism , multiply the volume of one cube by the number of cubes
so


simplify

Answer:8
Step-by-step explanation: