Which of the following compound has/have effective atomic number equal to the atomic number of a noble gas?

$$\begin{gathered} \mathrm{EAN}=\mathrm{Z}-\mathrm{X}+\mathrm{Y} \\ \mathrm{Z}=\mathrm{Atomic} \mathrm{number} \mathrm{of} \mathrm{metal} \\ \mathrm{X}=\mathrm{Number} \mathrm{of} \mathrm{electrons} \mathrm{lost} \mathrm{during} \mathrm{the} \mathrm{formation} \mathrm{of} \mathrm{the} \mathrm{metal} \mathrm{ion} \mathrm{from} \mathrm{its} \mathrm{atom} \\ \mathrm{Y}=\mathrm{Number} \mathrm{of} \mathrm{electrons} \mathrm{donated} \mathrm{by} \mathrm{ligands} \end{gathered}$$

$\mathrm{K}\left[\mathrm{Co}{\left(\mathrm{CO}\right)}_4\right]$

$$\begin{gathered} \mathrm{EAN}=\mathrm{Z}-\mathrm{X}+\mathrm{Y} \\ \mathrm{EAN}=27+1+8=36 \end{gathered}$$

${\mathrm{K}}_2\left[\mathrm{Fe}{\left(\mathrm{CO}\right)}_4\right]$

$$\begin{gathered} \mathrm{EAN}=\mathrm{Z}-\mathrm{X}+\mathrm{Y} \\ \mathrm{EAN}=26+2+8=36 \end{gathered}$$

$\left[{\mathrm{CoCl}}_3{\left({\mathrm{H}}_2\mathrm{O}\right)}_3\right]$

$$\begin{gathered} \mathrm{EAN}=\mathrm{Z}-\mathrm{X}+\mathrm{Y} \\ \mathrm{EAN}=27-3+12=36 \end{gathered}$$