Answer:
The correct option is B.
Explanation:
The given function is

From the given graph it is clear that the graph of f(x) shifts approximately 8 units up. It means the transformation is defined as

Where b is vertical shift of the function.
If b>0, then graph of f(x) shifts b units up and if b<0, then graph of f(x) shifts b units down.
The value of b is 8.



Therefore the correct option is B.