A
As the side length increases by 1, the area does not increase or decrease by an equal amount.
B
As the side length increases by 1, the area increases and then decreases by an equal amount. the area increases and then decreases by an equal factor.
C
As the side length increases by 1, the area does not change.
D
As the side length increases by 1, the area increases and then decreases by an equal factor.
