If f(x) is a rational function, what is one way to find the solution to f(x)=4 graphically? Choose the correct answer below. A. Find any x-intercepts. The x-coordinates of these intercepts are the solutions. B. Graph y=f(x). Find the x-value of 4 on the x-axis and move up or down to a point on the graph. The y-coordinate of this point is the solution. C. Graph y=f(x) and y=4 in the same xy-plane and find any points of intersection. The x-coordinates of these points are the solutions.