The wavelength of a red color band Lithium molecules is 671nm. What is the photon energy of this light wave?

A \( 2.6818 \times 10^{-18}\text{J} \)

B \( 3.8710 \times 10^{-19}\text{J} \)

C \( 2.8618 \times 10^{-18}\text{J} \)