Among `|Ni(CO)_(4)|, |Ni(CN)_(4)|^(2-), |NiCl_(4)|^(2-)` species, the hybridisation state at Ni atom are respectively
]Atomic number of Ni = 28]
A. `sp^(3),dsp^(3), dsp^(2)`
B. `sp^(3), dsp^(2), sp^(3)`
C. `sp^(3), sp^(3), dsp^(2)`
D. `dsp^(2), dsp^(2), sp^(3)`.
