According to the PMBOK Guide, an agile project is an adaptive life cycle project that follows an iterative and incremental approach. In an agile project, the project manager facilitates collaboration and empowers the team to deliver value. When an unidentified risk becomes an issue, the project manager should help the team review the project approach and initiate the corrective actions to address the issue and prevent recurrence.
Asking the sponsor to approve an additional iteration or money is not agile, as it implies that the project scope or budget is fixed and cannot accommodate changes. Asking the team to include the contingency plan in the iteration backlog is not appropriate, as the contingency plan should have been developed before the risk occurred and should be executed as soon as possible. References: PMBOK Guide, 6th edition, pages 18-19,
456-457, 686-687.

According to the PMBOK Guide, 6th edition, section 4.6.1.1, the project manager is responsible for communicating the approved changes to the relevant stakeholders and ensuring that the changes are implemented as planned. The project manager should also manage the expectations of the stakeholders and address any issues or concerns that arise from the changes. In this scenario, the project manager should first meet with the operations manager to explain the background for the change and understand the operation manager's concerns about the change. This will help to establish a collaborative relationship and resolve any potential conflicts. The other options are either premature or inappropriate, as they do not address the root cause of the problem or respect the authority of the CCB. References: PMBOK Guide, 6th edition, section
4.6.1.1, page 115.

In this scenario, the project manager should schedule a quality review meeting to address the sponsor's concerns. Even though the quality acceptance document was signed, which typically indicates formal acceptance of project deliverables, it is important to address any complaints regarding the quality of deliverables to maintain stakeholder satisfaction and to ensure continuous improvement. The meeting would provide an opportunity to discuss the issues raised by the sponsor, review the quality acceptance documentation, and determine if there are any corrective actions or process improvements that can be applied to future phases of the project. This approach aligns with the PMI's emphasis on stakeholder engagement and continuous improvement within project management processes123.
: The answer is supported by the principles found in the PMI's A Guide to the Project Management Body of Knowledge (PMBOK Guide) and the Professional in Business Analysis Reference Materials provided by PMI45.

Following the stakeholder engagement plan is the best option for the project manager in this situation. The stakeholder engagement plan is a document that describes how the project manager will communicate with, manage the expectations of, and involve the stakeholders in the project decisions. By following this plan, the project manager can ensure that the decision about the new timeline is made in a transparent, collaborative, and timely manner, and that the stakeholders are informed and satisfied with the outcome. References:
(Professional in Business Analysis Reference Materials source and documents)
* PMBOK Guide, Seventh Edition, Section 13.2.3, "Stakeholder Engagement Plan"
* Professional in Business Analysis (PMI-PBA) Guide, Section 5.3.2, "Stakeholder Engagement"

According to project management best practices, a change request is a formal document that describes the proposed changes to a project and the impact they will have on the project scope, schedule, budget, quality, and risks12. A change request should be initiated by the party that is requesting the change, not by the party that is delivering the project3. Therefore, the receiving manager should be responsible for issuing a change request to the project manager, who can then evaluate it and approve or reject it.
Delivering the project to the receiving manager on time, without ensuring that they are ready to accept it, could lead to poor knowledge transfer, lack of ownership, and increased risks of errors or defects4. Informing the project sponsor of the delay and replanning the activities could be done after the change request is approved, but not before. Issuing an internal change request to secure the resources for an additional two weeks could be seen as a unilateral decision by the project manager, without considering the needs and expectations of the receiving organization.
Therefore, the most appropriate and professional action for the project manager to do is to request that the receiving manager issue a change request to prolong the project by two weeks, and then follow the change management process to handle it. This way, the project manager can ensure that the project is delivered in accordance with the agreed scope, quality, and stakeholder satisfaction.