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(D) $(1) [Ag(NH_3)_2]^+$: $Ag^+$ has $d^{10}$ configuration. It undergoes $sp$ hybridization,resulting in a linear geometry.$(2) [MnCl_4]^{2-}$: $Mn^{

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$1, 2, 3$ and $4$

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(D) $(1) [Ag(NH_3)_2]^+$: $Ag^+$ has $d^{10}$ configuration. It undergoes $sp$ hybridization,resulting in a linear geometry.$(2) [MnCl_4]^{2-}$: $Mn^{2+}$ has $d^5$ configuration. $Cl^-$ is a weak field ligand,leading to $sp^3$ hybridization,resulting in a tetrahedral geometry.$(3) [Cu(NH_3)_4]^{2+}$: $Cu^{2+}$ has $d^9$ configuration. It undergoes $dsp^2$ hybridization,resulting in a square planar geometry.$(4) [Ni(CN)_4]^{2-}$: $Ni^{2+}$ has $d^8$ configuration. $CN^-$ is a strong field ligand,leading to $dsp^2$ hybridization,resulting in a square planar geometry.All the given geometries are correct. Therefore,the correct option is $D$.

The geometries of some complex ions are given below. Select the correct answer.
$(1) [Ag(NH_3)_2]^+ - \text{Linear}$
$(2) [MnCl_4]^{2-} - \text{Tetrahedral}$
$(3) [Cu(NH_3)_4]^{2+} - \text{Square planar}$
$(4) [Ni(CN)_4]^{2-} - \text{Square planar}$

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The geometries of some complex ions are given below. Select the correct answer.$(1) [Ag(NH_3)_2]^+ - \text{Linear}$$(2) [MnCl_4]^{2-} - \text{Tetrahedral}$$(3) [Cu(NH_3)_4]^{2+} - \text{Square planar}$$(4) [Ni(CN)_4]^{2-} - \text{Square planar}$