After a change request is approved, a vendor shares the estimated delivery date with project management. A key stakeholder requests to have this change completed by an earlier date. Which of the…

Since the change request has already been approved through the formal change control process, the delivery constraint now lies with the vendor; negotiating with the vendor is the most direct way to explore whether the timeline can be compressed to satisfy the stakeholder's request without initiating a new change process.

Evaluating the impact of switching tasks on the schedule is a pre-approval activity; at this stage the change is already approved and the vendor delivery date is the active constraint.

The CCB has already reviewed and approved the change; escalating back to the CCB is only warranted if an entirely new change request is required, not to resolve a delivery date discussion.

Confronting the stakeholder is unprofessional and violates stakeholder management principles; the appropriate response is to explore solutions rather than dismiss the request.