Which of the following methods is a means of ensuring that system changes are approved before being implemented, only the proposed and approved changes are implemented, and the implementation is…

Configuration control is a broader process of managing changes to configuration items, but "documentation control" specifically addresses the approval, implementation, and accuracy through formalized records and procedures.

Documentation control, in the context of change management, ensures that all proposed system changes are properly documented, reviewed, approved, and that the implementation adheres to the approved documentation. This helps verify that only authorized changes are made and correctly applied, providing a trail of accountability.

Configuration identification involves naming and describing configuration items, which is a prerequisite for managing changes, but it doesn't ensure approval or accurate implementation.

Configuration auditing verifies that the system's configuration adheres to baselines and requirements after changes, but it doesn't directly ensure that changes are approved before implementation or that only approved changes are implemented.