Mark claims: "A large fish tank in the shape of a cube, which has a side length of 4 m, can only hold 16 m3 of water." The volume of water the fish tank can hold is equal to the length of the side cubed, volume=s3, where s represents the length of the side of the tank.

Mark's work is shown below.
volume of a cube = s3
the variable s=4m
volume = (4m)3
volume = 4m×4m
volume = 16m3

Mark's claim is incorrect. Which of the following statements explains the flaw in Mark's work?
The fish tank cannot hold as much water as 16 m3, he substituted the wrong value in for s.

The fish tank cannot hold as much water as 16 m3, he only squared the value of s.

The fish tank can hold more water than 16 m3, he substituted the wrong value in for s.

The fish tank can hold more water than 16 m3, he only squared the value of s.

if you dont know please dont answer.