Zidi

I was wondering how Cad Bane Rogue Class Separatist interacts with the standardized upgrade Independent Calculations? The rules state he MUST equip it if one Rogue class has it, but he doesn't meet the requirements to equip it. Does that mean: a) He equips it but can't use it b) He can't equip it but other rogue's can c) No rogue class can equip it while Cad Bane is selected. Thanks