The sum of the number of dative bonds present in all the given species are; ${\mathrm{Al}}_2{\mathrm{Cl}}_6, \mathrm{Al}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6, \mathrm{CO}, {\mathrm{NH}}_4^{+}$

Find the hybridization of carbons $1$ and $2$, respectively, in the below compound?

Statement $\left(\mathrm{A}\right)$: ${\mathrm{PF}}_5$ has a square pyramidal shape.

Statement $\left(\mathrm{B}\right)$: ${\mathrm{BrF}}_5$ is isostructural with ${\mathrm{PF}}_5$.

The correct answer is