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