The correct order of spin-only magnetic moments among the following is: (Atomic number: Mn =25, Co =27, Ni = 28, Zn = 30)

$\displaystyle \begin{aligned} & {\left[\mathrm{ZnCl}_4\right]^{2-}>\left[\mathrm{NiCl}_4\right]^{2-}>\left[\mathrm{CoCl}_4\right]^{2-}} \\ & >\left[\mathrm{MnCl}_4\right]^{2-} \end{aligned}$

$\displaystyle \begin{aligned} & {\left[\mathrm{CoCl}_4\right]^{2-}>\left[\mathrm{MnCl}_4\right]^{2-}>\left[\mathrm{NiCl}_4\right]^{2-}} \\ & >\left[\mathrm{ZnCl}_4\right]^{2-} \end{aligned}$

$\displaystyle \begin{aligned} & {\left[\mathrm{NiCl}_4\right]^{2-}>\left[\mathrm{CoCl}_4\right]^{2-}>\left[\mathrm{MnCl}_4\right]^{2-}} \\ & >\left[\mathrm{ZnCl}_4\right]^{2-} \end{aligned}$

$\displaystyle \begin{aligned} & {\left[\mathrm{MnCl}_4\right]^{2-}>\left[\mathrm{CoCl}_4\right]^{2-}>\left[\mathrm{NiCl}_4\right]^{2-}} \\ & >\left[\mathrm{ZnCl}_4\right]^{2-} \end{aligned}$