What is the true statement regarding ${\mathrm{IF}}_5$ molecule?

What is true about the change: ${\mathrm{SO}}_2+\frac{1}{2}{\mathrm{O}}_2\to {\mathrm{SO}}_3$?

(i) Hybrid state of sulfur changes from $\mathrm{sp}$ to ${\mathrm{sp}}^2$.

(ii) The bent shape of ${\mathrm{SO}}_2$ changes to trigonal planar.

(iii) Bond angles between$\mathrm{O}-\mathrm{S}-\mathrm{O}$ atoms are different.

There are three diatomic species with each having a bond order of three. What is true regarding them?

(a) All of them can be isoelectronic.

(b) They are isostructural.

(c) They may include cationic/anionic species.

(d) They may include neutral species.