${\mathrm{AB}}_2$ type structure is found in

The structure of ${\mathrm{AB}}_2$ can be represented as ${\text{AB}}_2\iff {\mathrm{A}}^{2+}+2{\mathrm{B}}^{-}$.

Among the given options the structure of ${\mathrm{CaF}}_2$  can also be represented as ${\mathrm{CaF}}_2\iff {\mathrm{Ca}}^{2+}+2{\mathrm{F}}^{-}$

Hence, ${\mathrm{CaF}}_2$ has ${\mathrm{AB}}_2$ type of structure present in it.