Amongst `[NiCl_(4)]^(2-), [Ni(H_(2)O)_(6)]^(2+), [Ni(PPh_(3))_(2)Cl_(2)], [Ni(CO)_(4)]` and [Ni(CN)^(2-)` the paramagnetic species are
A. `[NiCl_(4)]^(2-), [Ni(H_(2)O)_(6)]^(2+), [Ni(PPh_(3))_(2)Cl_(2)]`
B. `[Ni(CO)_(4)], [Ni(PPh_(3))_(2)Cl_(2)], [NiCl_(4)]^(2-)`
C. `[Ni(CN)_(4)]^(2-), [Ni(H_(2)O)_(6)](2+), [NiCl_(4)]^(2-)`
D. `[Ni(PPh_(3))_(2)Cl_(2)], [Ni(CO)_(4)], [Ni(CN)_(4)]^(2-)`
