Which one of the following high spin complexes has the largest crystal field stabilization energy ?

For [Cr(H₂O)₆]³⁺, the outer electronic configuration of Cr³⁺ is ${\mathrm{t}}_{2\mathrm{g}}^3{\mathrm{e}}_{\mathrm{g}}^0$. The CFSE value of the complex is:

$\mathrm{C}.\mathrm{F}.\mathrm{S}.\mathrm{E}=3\times \left(-0.4{∆}_{\circ }\right)=-1.2 {∆}_{\circ }$

It has the highest CFSE value compared to the rest of the given complexes.