Sodium Lamps Emit Yellow Light with Nominal Wavelength of 589 $\times$

Multiple Choice

Sodium lamps emit yellow light with nominal wavelength of 589 nm.What is the energy of these photons in kJ/mol?

A) 3.37 $\times$ 10^-9 kJ/mol
B) 2.35 $\times$ 10^-7 kJ/mol
C) 120 kJ/mol
D) 70.5 kJ/mol
E) 202 kJ/mol