A transition metal (M) among \(\mathrm{Mn},\mathrm{Cr},\mathrm{Co}\) and Fe has the highest standard electrode potential…

A transition metal (M) among \(\mathrm{Mn},\mathrm{Cr},\mathrm{Co}\) and Fe has the highest standard electrode potential \(\left({\mathrm{M}}^{3+}/{\mathrm{M}}^{2+}\right)\). It forms a metal complex of the type \({\left[\mathrm{M}(\mathrm{CN}{)}_{6}\right]}^{4-}\). The number of electrons present in the \({e}_{g}\) orbital of the complex is________

[JEE Main 2025, 2 Apr (Shift 1)]