The one that can exhibit highest paramagnetic behaviour among the following is: (gly = glycinato; bpy = 2,2'-bipyridine)

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Strategy:
 The highest paramagnetic behavior corresponds to the complex with the maximum number of unpaired electrons. We must evaluate the electronic configuration for each option.

Step 1: Evaluate each complex
- :  is a  metal. It invariably forms square planar diamagnetic complexes ( unpaired).
-  ():  (). Strongly given as  means it's low spin:  ( unpaired).
- :  (). Has  unpaired electron.
- : Contains  (). Even though  and  are strong field ligands, if structurally constrained to act as h

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