A pipe manufacturer for a water pipeline project conducts sample testing without the presence of the client's quality assurance manager. The quality management plan clearly states that the client and quality assurance manager must be present during such tests.
The manufacturer, however, insists that such approvals are unnecessary due to its longstanding business relationship with the client.
What should the project manager do?


A. Reinspect the batch of pipes tested.
B. Formally communicate to the manufacturer its noncompliance with the quality management plan.
C. Meet with the manufacturer to ensure cooperation and collaboration.
D. Register the incident in the issue log, and inform management.