Answer:
B. The function f(x) is a geometric sequence.
Explanation:
We are given that,
The function f(x) grows by 12% for every unit in the domain.
That is,
For the initial value, let the output value be x.
For the next value, the output will be

For the next value, the output will be

For the next value, the output will be
and so on..
Thus, the output values are increasing by the rate

Hence, the function f(x) represents a geometric sequence.