answer just match

Match the following If the starting complex is cis and the resulting complex is exclusively cis (substitution in octahedral complexes - SN1 ), the intermediate has In substitution reaction mechanism SN1, when the resulting A. Trigonal geometry complexes constitute of racemic mixture, the intermediate complex should have B. trigonal bipyramidal The intermediate in octahedral complexes substitution mechanism C. Pentagonal bipyramidal (SN2) has D. square pyramidal geometry The intermediate in tetrahedral complexes substitution mechanism (SN1) has