List-$I$ contains metal species and List-$II$ contains their properties.

List-$I$	List-$II$
$I$. $[Cr(CN)_6]^{4-}$	$P$. $t_{2g}$ orbitals contain $4$ electrons
$II$. $[RuCl_6]^{2-}$	$Q$. $\mu$ (spin-only) $= 4.9 \ BM$
$III$. $[Cr(H_2O)_6]^{2+}$	$R$. low spin complex ion
$IV$. $[Fe(H_2O)_6]^{2+}$	$S$. metal ion in $4+$ oxidation state
	$T$. $d^4$ species

[Given: Atomic number of $Cr = 24, Ru = 44, Fe = 26$] Match each metal species in List-$I$ with their properties in List-$II$,and choose the correct option.

• A
  $I$ $\rightarrow R, T; II$ $\rightarrow P, S; III$ $\rightarrow Q, T; IV$ $\rightarrow P, Q$
• B
  $I$ $\rightarrow R, S; II$ $\rightarrow P, T; III$ $\rightarrow P, Q; IV$ $\rightarrow Q, T$
• C
  $I$ $\rightarrow P, R; II$ $\rightarrow R, S; III$ $\rightarrow R, T; IV$ $\rightarrow P, T$
• D
  $I$ $\rightarrow Q, T; II$ $\rightarrow S, T; III$ $\rightarrow P, T; IV$ $\rightarrow Q, R$