Which pair of the following complexes has the same $EAN$ for the metal atom/ion?

  • A
    $[Ni(en)_2]^{2+}, [Sc(H_2O)_6]^{3+}$
  • B
    $[Ni(CO)_4], [Fe(CN)_6]^{4-}$
  • C
    $[Fe(CN)_6]^{3-}, [Co(CN)_6]^{3-}$
  • D
    $[Ni(en)_2]^{2+}, [Fe(H_2O)_6]^{2+}$

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