Violet Light with a Wavelength Of $430 \mathrm{~nm}$ Falls on a Sodium Plate

Multiple Choice

Violet light with a wavelength of $430 \mathrm{~nm}$ falls on a sodium plate $(W=2.75 \mathrm{eV})$ and a potassium plate $(W=$ $2.30 \mathrm{eV})$ . Which of of the following statements is true?

A) Both plates emit electrons, but those emitted by the sodium plate have the larger kinetic energy.
B) Both plates emit electrons, but those emitted by the potassium plate have the larger kinetic energy.
C) Only the sodium plate emits electrons.
D) Only the potassium plate emits electrons.
E) Neither plate emits electrons.