Use the table of values below to select the correct statement.

x f(x)
-2 -2
2 8
6 18
10 28
14 38
A.
The function f is linear and is growing by equal differences over equal intervals. The growth rate is 2.5.
B.
The function f is linear and is growing by equal differences over equal intervals. The growth rate is 10.
C.
The function f is exponential and is growing by equal factors over equal intervals. The growth factor is 400%.
D.
The function f is exponential and is growing by equal factors over equal intervals. The growth factor is 250%.