HELP PLEASE IM BEGGING YOU!! PLEASE DONT ANSWER IF YOU DONT KNOW !! SHOW YOUR WORK!!

Answer:
The answer is D
Step-by-step explanation:
Why? Well because when your trying to find the volume of a cube you multiply itself 3 times
he only did it twice
so the actual volume would be equal to
4x4x4
4x4=16
16x4=64