What Is the Photon Energy of Red Light Having a Wavelength

Multiple Choice

What is the photon energy of red light having a wavelength of 6.40 × 10² nm? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s)

A) 1.13 × 10^-19 J
B) 1.31 × 10^-19 J
C) 3.11 × 10^-19 J
D) 1.94 × 10^-19 J