(A) The empirical formula of BrF5 is AB5E. Its hybridization is sp3d2 and shape is square pyramidal. (B) The empirical formula of SF4 is AB4E. Its hybridization is sp3d and shape is see saw. (C) The empirical formula of XeF4 is AB4E2. Its hybridization is sp3d2 and shape is square planar. (D) The empirical formula of ClF3 is AB3E2. Its hybridization is sp3d and shape is T-shape. Therefore, A-III, B-I, C-II, D-IV