What is the wavelength of a $100MeV$ photon? [Plank's constant $h = 6.63\times 10^{-34}Js$]

$1.943\times 10^{-14}\mathrm{~m}$

$1.243\times 10^{-14}\mathrm{~m}$

$1.343\times 10^{-14}\mathrm{~m}$

$2.943\times 10^{-14}\mathrm{~m}$