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Multiple ChoiceIntermediate 45s

Architecture vs design decision

Which decision is most clearly architectural (hard to reverse) rather than local design?
Options
  1. 1Choosing synchronous request/response vs event-driven integration between major subsystems
  2. 2Renaming a private helper method so it better conveys its purely local intent to readers
  3. 3Reordering the import statements at the top of a single source file for consistency
  4. 4Extracting a repeated local variable inside one method purely to reduce visual noise there

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