Which of the following is correct order is spectro chemical series of ligands

${\mathrm{Cl}}^{-} < {\mathrm{F}}^{-} < {\mathrm{C}}_2{{\mathrm{O}}_4}^{2_{-}}< {\mathrm{NO}}_{2^{-}}< {\mathrm{CN}}^{-}$

${\mathrm{NO}}_{2^{-}}< {\mathrm{C}}_2{{\mathrm{O}}_4}^{2_{-}}< {\mathrm{Cl}}^{-} < {\mathrm{F}}^{-} < {\mathrm{CN}}^{-}$

$C_2{O_4}^{2_{-}} < F^{-} < C{l}^{-} < N{O}_{2^{-}} < C{N}^{-}$

${\mathrm{F}}^{-} < {\mathrm{Cl}}^{-} < {\mathrm{NO}}_{2^{-}}< {\mathrm{CN}}^{-} < {\mathrm{C}}_2{{\mathrm{O}}_4}^2$