The correct answer is C. Review points . Internal project interfaces are points of interaction, coordination, handover, control, or decision-making that occur within the project or sponsoring organization. Review points are internal interfaces because they create structured interaction between project participants, such as the project manager, sponsor, project board, assurance function, work package leaders, technical teams, or governance bodies. At review points, the project may assess progress, risks, issues, quality, readiness, acceptance, or authorization to proceed. Option A, regulatory agencies, is an external interface because regulators sit outside the project organization and impose legal or compliance expectations. Option B, community groups, is also external because communities may be affected by the project but are not normally part of the internal project structure. The distinction matters because internal and external interfaces are managed differently. Internal interfaces often rely on governance processes, internal reporting, coordination meetings, escalation routes, and role clarity. External interfaces require stakeholder engagement, regulatory communication, public consultation, contractual coordination, or external reporting. The source question set lists review points as the example of an internal project interface.
Reference topics: internal project interface, review points, governance review, stakeholder interface, external interface.
