Identify complex (s) in which all geometrical isomer of complex are optically active
(A) [Co(gly)3]0 (B) [Co(en)(NH3)(Py)(Br)(Cl)]+ (C) [PT(NH3)(Py)(Br)(I)]0
(D)[Pt(C2O4)2(NO)2]2-
Complex (B) [Co(en)(NH3)(Py)(Br)(Cl)] is of type [Ma2bcde] which gives 15 isomers, each of which can exists in d- or l- forms giving total 30 isomers. Thus all geometric isomers are optically active.