A square planar complex is formed by hybridization of which atomic orbitals?

• A

  $\mathrm{s},{\mathrm{p}}_{\mathrm{x}},{\mathrm{p}}_{\mathrm{y}},{\mathrm{d}}_{\mathrm{yz}}$

• B

  $\mathrm{s},{\mathrm{p}}_{\mathrm{x}},{\mathrm{p}}_{\mathrm{y}},{{\mathrm{d}}_{\mathrm{z}}}^2$

• C

  $\mathrm{s},{\mathrm{p}}_{\mathrm{x}},{\mathrm{p}}_{\mathrm{y}},{\mathrm{d}}_{\mathrm{x}}^2-{\mathrm{y}}^2$

• D

  $\mathrm{s},{\mathrm{p}}_{\mathrm{x}},{\mathrm{p}}_{\mathrm{y}},{\mathrm{d}}_{\mathrm{xy}}$