Which statement best explains whether the table represents a linear or nonlinear function?
Input (x) Output (y)
0 1
1 2
2 4
3 16

A- It is a linear function because there is a constant rate of change in both the input and output values.
B- It is a nonlinear function because there is a constant rate of change is both the input and output values.
C- It is a linear function because the output values are increasing at different rates.
D- It is a nonlinear function because the output values are increasing at different rates.