The coordination compound has five stereoisomers (geometric plus optical isomers). Select all that apply...
A:NH4[Pt(NH3)Cl3]
B: tris(ethylenediamine)cobalt(III) sulfate
C: tetraaquadichloronickel(IV) chloride
D: [Co(NH3)2(en)Cl2]Cl
E: [Co(en)2Cl2]Br
F: sodium hexacyanoferrate(II)
None of these compounds