Aqueous solution contains Zn(CH₃COO)₂, Cd(CH₃COO)₂ and Cu(CH₃COO)₂. On passing H₂S gas, there is a precipitation of ……. as sulphide.

• A

  ${\mathrm{Zn}}^{2+}$

• B

  ${\mathrm{Cd}}^{2+}$

• C

  ${\mathrm{Cu}}^{2+}$

• D

  None of these