The wavelength of a photon needed to remove

The wavelength of a photon needed to remove a proton from a nucleus which is bound to the nucleus with 1 MeV energy is nearly

(a) 1.2 nm

(b) 1.2 × 10–3 nm

(c) 1.2 × 10–6 nm

(d) 1.2 × 101 nm