In which of the following octahedral complex species the magnitude of $\Delta_0$ will be maximum?

The increasing order of the crystal field splitting power of some common ligands is

Crystal field stabilization energy for high spin $d^4$ octahedral complex is

The transition metal complex with the highest value of crystal field splitting $(\Delta_{0})$ is ........ .

Simplified absorption spectra of three complexes $(i), (ii)$ and $(iii)$ of $M^{n+}$ ion are provided below; their $\lambda_{max}$ values are marked as $A, B$ and $C$ respectively. The correct match between the complexes and their $\lambda_{max}$ values is
$(i)$ $[M(NCS)_6]^{(-6+n)}$
$(ii)$ $[MF_6]^{(-6+n)}$
$(iii)$ $[M(NH_3)_6]^{n+}$

The wavelength of light absorbed for the following complexes are in the order:
$I: [Co(NH_3)_6]^{3+}; II: [Co(H_2O)_6]^{3+}; III: [Co(CN)_6]^{3-}; IV: [Co(NH_3)_5(H_2O)]^{3+}; V: [CoF_6]^{3-}$