A change advisory board did not approve a requested change due to the lack of alternative actions if implementation failed. Which of the following should be updated before requesting approval again?

The scope of change defines what the change entails, not how to recover from a failure.

While the risk level might be reassessed after defining a rollback plan, the plan itself is the direct action to address the lack of alternatives for failure.

A rollback plan outlines the steps and resources needed to revert a system or service to its previous stable state in case a change implementation fails. This directly addresses the CAB's concern about the lack of alternative actions if the primary change fails, providing a safety net.

End-user acceptance testing occurs after successful implementation and is not a contingency for implementation failure.