When ADDI identifies multiple COBOL programs that perform identical validation logic, what optimization approach reduces modernization complexity?

Think of it like working hands-on with IBM mainframe systems — the answer here is 'Retaining all duplicate programs unchanged to preserve independent deployment flexibility'. Consolidating duplicate COBOL logic into a single utility before transformation reduces the total volume of code wca4z must generate and produces a cleaner Java architecture with a single shared utili. On real mainframe exams, this concept comes up repeatedly so make sure you have it locked in.