Answer
Option C is correct.
The third graph is the answer to this question.
Step-by-step explanation
When function is moved along the y-axis, the number of units by which it is moved is added to the function. That is, if a function is given as
y = f(x)
Once it is oved along the y-axis by about b units, the function becomes
y = f(x) + b
If the function is moved upwards along the y-axis, then, b is a positive number.
If the function is moved downwards along the y-axis, then, b is a negative number.
So, for this question where b is a positive number, the graph of the function will be moved upwards along the y-axis by b units.
Hence, option C expresses an upward movement of this graph along the y-axis and is the correct answer.
Hope this Helps!!!