Which Pieces of Information Are Needed to Explain Why NiCl₄^2-

Which pieces of information are needed to explain why NiCl₄^2- is paramagnetic?
I.It has six d electrons.
II.It has eight d electrons.
III.It is strong field.
IV.It is weak field.
V.It is tetrahedral.
VI.It is square planar.

A) I, IV, either V or VI
B) II, IV, either V or VI
C) II, III, VI
D) II, III, either V or VI
E) I, III, V