Answer: Second Option
and

Step-by-step explanation:
Note that f(x) is a horizontal line.
Functions whose graph is a horizontal line have the following form:

Where b is the intersection with the y axis.
In this case b = 4. Then we can write f(x) as:

Now notice that g(x) is a parabola.
The solution of the equation
are all points where the graph of f(x) intersects the graph of g(x).
Note that the intersection between the graphs occurs at the points: (-4, 4) and (0, 4)
Then the answer is the second option