For ${\mathrm{BF}}_3$ molecule which of the following statements are true?

${\mathrm{BF}}_3$​ is ${\mathrm{sp}}^2$ hybridized with 3 bond pairs and zeo lone pairs. The decrease in $\mathrm{B}-\mathrm{F}$ bond length is due to delocalised pπ−pπ bonding between filled p-orbital of F atom and vacant p-orbital of B atom. There is also  pπ−pπ back bonding in this molecule

Correct options are A) , B) and C).