With proper energetic radiation, the photoelectric current increases with an increase in accelerating potential until it reaches a point where it reaches its maximum and does not increase with an additional increase in accelerating potential.

For a given potential difference, the photocurrent is directly proportional to the intensity of the incident radiation.

The maximum kinetic energy of the emitted photoelectrons can be written as

From above equation, it can be seen that the maximum kinetic energy of the photoelectron depends on the frequency of the light used. Hence, the statements A and C are correct.