Hybridization and shapes of xenon compounds: 1. $\text{XeO}_3$: 3 $\sigma$ bonds + 1 lone pair = 4 steric number $\implies sp^3$, trigonal pyramidal (II). 2. $\text{XeF}_2$: 2 $\sigma$ bonds + 3 lone pairs = 5 steric number $\implies sp^3d$, linear (I). 3. $\text{XeOF}_4$: 5 $\sigma$ bonds + 1 lone pair = 6 steric number $\implies sp^3d^2$, square pyramidal (IV). 4. $\text{XeF}_6$: 6 $\sigma$ bonds + 1 lone pair = 7 steric number $\implies sp^3d^3$, distorted octahedral (III). Hence, A-II, B-I, C-IV, D-III.