Given below are two statements : One is labelled as Assertion $\mathrm{A}$ and the other is labelled as Reason $\mathrm{R}$

Assertion $\mathrm{A}$ : Zero orbital overlap is an out of phase overlap.

Reason $\mathrm{R}$ : It results due to different orientation/ direction of approach of orbitals.

In the light of the above statements. Choose the correct answer from the options given below

Consider, ${\mathrm{PF}}_5,{\mathrm{BrF}}_5,{\mathrm{PCl}}_3,{\mathrm{SF}}_6,{\left[{\mathrm{ICl}}_4\right]}^{-},{\mathrm{ClF}}_3$ and ${\mathrm{IF}}_5$

Amongst the above molecule(s) ion(s), the number of molecule(s)/ion(s) having ${\mathrm{sp}}^3{\mathrm{d}}^2$ hybridisation is

Order of Covalent bond;

A. $\mathrm{KF}>\mathrm{KI}; \mathrm{LiF}>\mathrm{KF}$

B. $\mathrm{KF}<\mathrm{KI}; \mathrm{LiF}>\mathrm{KF}$

C. ${\mathrm{SnCl}}_4>{\mathrm{SnCl}}_2; \mathrm{CuCl}>\mathrm{NaCl}$

D. $\mathrm{LiF}>\mathrm{KF}; \mathrm{CuCl}>\mathrm{NaCl}$

E. $\mathrm{KF}<\mathrm{KI}; \mathrm{CuCl}>\mathrm{NaCl}$

Statement I:- Dipole moment is a vector quantity and by convention it is depicted by a small arrow with tail on the negative centre and head pointing towards the positive centre.

Statement II:- The crossed arrow of the dipole moment symbolizes the direction of the shift of charges in the molecules.

In the light of the above statements, choose the most appropriate answer from the options given below:-