What Is the Energy of a Photon of Light That

Multiple Choice

What is the energy of a photon of light that has a frequency of 2.3×10¹⁴ s ^{- 1} (h = 6.6×10 ^{- 34} J × s) ?

A) 2.8×10 ^{- 18} J
B) 1.5×10 ^{- 19} J
C) 2.9×10 ^{- 48} J
D) 6.4×10 ^{- 22} J
E) none of these