Which of the following complex has three stereo isomers and exhibits both geometrical and optical isomersism(a,b,c.d=monodentate ligands; aa=symmetrical bidentate ligand)

Option 1,2 and 4 exhibit geometrical isomerism only;Option 3 exhibits both geometrical and optical isomerism;cis isomer has dextro and laevo isomers,trans isomer is a meso isomer;