Select the correct answer. Exponential function f is represented by the table.

x -2 -1 0 1 2
f(x) -46 -22 -10 -4 -1

Function g is represented by the equation.

g(x)-18(1/3)^x+2

Which statement correctly compares the two functions on the interval [-1, 2]?

A.
Only function f is increasing, but both functions are negative.
B.
Both functions are increasing, but function f increases at a faster average rate.
C.
Both functions are increasing, but function g increases at a faster average rate.
D.
Only function f is increasing, and only function f is negative.