Which of the following functions shown in the table below is not an exponential function?Check all that apply.

x -3 -2 -1 0 1 2 3

f(x) 2 5 10 17 26 37 50

g(x) 0.125 0.25 0.5 1 2 4 8

h(x) 0.25 0.5 0.75 1 1.25 1.5 1.75

k(x) 64 16 4 1 0.25 0.0625 0.0156

A. k(x)

B. f(x)

C. g(x)

D. h(x)