Which of the following ions does not involve sp3 hybridization?

${ICl}_{2}^{-}$ involves ${sp}^{3} d$ hybrid orbitals of l atoms. The configuration of l along with le to form $1^{-}$ ion is

Two single electrons form o bond with two chlorine atoms. There are three lone pairs of electrons.

Which of the following ions does not involve ${sp}^{3}$ hybridization?