Mark is managing a water distribution network design project. The project is currently in the planning phase. During the Plan Stakeholder Management process, Mark feels the need to update the project stakeholder register. What should Mark do?

A. Mark should update the stakeholder register; the stakeholder register can be updated during the Plan Stakeholder Management process.

B. Mark does not have to update the stakeholder register; he can capture all the required updates in the stakeholder management plan.
C. Mark cannot update the stakeholder register during the planning phase of the project.
D. Mark needs to issue a change request in order to update the stakeholder register.