The first product batch is ready but a quality control check rejects it. RCA shows a component added by the latest change request was not tested during development. What should the project manager do next?

The correct answer is to review the change control process to ensure quality management artifacts are updated as part of the change. The root cause analysis (RCA) clearly indicates a breakdown in integrating quality considerations into the change process: a new component was added but not tested. This points directly to a flaw in how changes are managed and how quality assurance (QA) and quality control (QC) are incorporated into the change lifecycle. The change control process should mandate that quality impacts, including necessary testing, are assessed and planned for any approved change. Reviewing the quality management process and performing a process audit (second option) is too broad; the problem is specifically related to how changes affect quality, not the entire quality process. Reviewing the communications management plan (third option) is incorrect because the issue isn't a lack of communication, but rather a lack of testing for a new component. Reviewing the quality management process with the PMO (fourth option) is also too general; while PMO involvement can be beneficial, the immediate action should address the specific process failure identified by the RCA.