Answer: Option D

Step-by-step explanation:
If we have a function f(x), then the graph of
can be shifted upwards k units using the transformation
.
Where k is a positive number.
In this problem the function f(x) is:

This function has its intercept with the y-axis in y = 1
Then, the graph of g(x) is equal to the graph of f(x) shifted 1 unit up and cuts to the y axis in y = 2.
Therefore g(x) is equal to the function f(x) after the transformation 
So:
