Given following complexes
`(I) Na_4[Fe(CN)_6] (II) [Cr(H_2O)_6] Cl_2
(III) (NEt_4)_2 [CoCl_4] (IV) Na_3[Fe(C_2O_4)_3] (Delta_0 gt P)`
Correct order of spin only magnetic moment for the above complexes is
A. `(III) gt (I) gt (IV) gt (II)`
B. `(I) gt (IV) gt (III) gt (II)`
C. `(II) ~~ (I) gt (IV) gt (III)`
D. `(III) gt (I) gt (II)gt (IV)`