At t = 0, light of intensity 1012 photons/s-m2 of energy 6eV per photon start falling on a plate with work function 2.5 eV. If area of the plate is 2 x 10-4 m2 and for every 105 photons one photoelectron is emitted, charge on the plate at t = 25s is
(A) 8 x 10-14C
(B) 4 x 10-14 C
(C) 12 x 10-14 C
(D) 16 x 10-14 C
