Potassium has a threshold frequency (o) of 5.55 1014 Hz. What is the maximum number of electrons that could be ejected from potassium by

Potassium has a threshold frequency (νo) of 5.55 × 1014 Hz. What is the maximum number of electrons that could be ejected from potassium by a burst of photons (of frequency higher than νo) with a total energy of 4.19 × 10−14 J?

A) 0

B) 474

C) 1.14 × 10^5

D) 3.67 × 10^8

E) 6.32 × 10^19