plied across the electrodes of a photocell when radiation of a fixed frequency but different intensities is shone on the metal plate of the photocell?...

Please help to answer below questions being attached.

6) Which of the following correctly shows the graph of the photoelectric current Ip against the voltage V applied across the electrodes of a photocell whenradiation of a fixed frequency but different intensities is shone on the metal plate of the photocell? (Take V to be positive when the metal plate is at alower potential than the other electrode.)Answer & Choices:A.O D.0B.0C.0