56. For quantum model, E = hν = hc / λ, where E is photon energy in unit of eV, h is the Planck’s constant (),ν is the frequency (s-1), λ is the wavelength in meters (m), then E✖λ (eV m) is:
(A)  1.24 ✖10- 3
(B)  1.24✖ 10-4
(C) 1.24 ✖10-5
(D)  1.24✖ 10- 6 
(E)  1.24✖ 10-7