Determine which function(s) are exponential. Select all that apply.
A.
x 0 1 2 3 4
y 0 1 4 9 16
B.
x 0 1 2 3 4
y 13
1 3 9 27
C.
x 0 1 2 3 4
y 5 52
54
58
516
D.
x 0 1 2 3 4
y 4.5 4 3.5 3 2.5