A key supplier has become unavailable and the project manager has found a replacement that will meet project approval. Bringing the new supplier onboard will add 10 days to the project timeline. However, a key stakeholder does not want to extend the schedule. The new supplier must be used to move to the execution phase. What should the project manager do? 1. A.Meet with the stakeholder to explain that using the new supplier will increase the timeline but will meet the overall project goals. 2. B.Let the stakeholder know that the current schedule will require updates, and continue with periodic reviews to discuss the updates. 3. C.Inform the stakeholder that there will be a 10-day delay in the schedule to onboard the new supplier, but critical path tasks will be fast tracked. 4. D.Communicate to the stakeholder that using the new supplier will require a restart at the beginning of the next planning phase.