In a photoelectric effect experiment, monochromatic light of frequency \(f_1\) and intensity \(I_1\) is incident on a metal target in an evacuated tube with an adjustable potential difference \(V\), producing the photocurrent \(I\) as a function of \(V\) shown for Trial 1. The experiment is repeated on the same target using a second monochromatic light source with higher frequency \(f_2 > f_1\) and lower intensity \(I_2 < I_1\) to produce Trial 2. Which of the following graphs best represents the current \(I\) as a function of potential difference \(V\) for both trials?