Consider ' n ' is the number of lone pair of electrons present in the equatorial position of the most stable structure of ${\rm{Cl}}{{\rm{F}}_3}$. The ions from the following with ' n ' number of unpaired electrons are
A. ${{\rm{V}}^{3+}}$
B. ${\rm{T}}{{\rm{i}}^{3+}}$
C. ${\rm{C}}{{\rm{u}}^{2+}}$
D. ${\rm{N}}{{\rm{i}}^{2+}}$
E. ${\rm{T}}{{\rm{i}}^{2+}}$
Choose the correct answer from the options given below: