Which of the following sequences of hybridisation, geometry and magnetic nature are correct for the given coordination compounds?
A. $$[NiCl_4]^{2-}$$ -- sp$$^3$$, tetrahedral, paramagnetic
B. $$[Ni(NH_3)_6]^{2+}$$ -- sp$$^3$$d$$^2$$, octahedral, paramagnetic
C. $$[Ni(CO)_4]$$ -- sp$$^3$$, tetrahedral, paramagnetic
D. $$[Ni(CN)_4]^{2-}$$ -- dsp$$^2$$, square planar, diamagnetic
Choose the correct answer from the options given below :