According to the PMBOKĀ® Guide, Project Integration Management includes the processes and activities to identify, define, combine, unify, and coordinate the various processes and project management activities within the Project Management Process Groups.
There are seven processes within this knowledge area, and Monitor and Control Project Work is one of them. Its primary function is to track, review, and report the overall progress to meet the performance objectives defined in the project management plan. It is a high-level integration process that looks across all other knowledge areas to ensure the project is on track.
Analysis of other options:
Control Scope (Option B): This process belongs to the Project Scope Management knowledge area. It focuses specifically on monitoring the status of the project and product scope and managing changes to the scope baseline.
Control Schedule (Option C): This process is part of Project Schedule Management. Its focus is strictly on monitoring the status of project activities to update project progress and manage changes to the schedule baseline.
Develop Team (Option D): This process belongs to Project Resource Management. It involves improving competencies, team member interaction, and the overall team environment to enhance project performance.
Per PMI standards, Integration Management is the unique responsibility of the project manager and cannot be delegated or departmentalized, as it provides the cohesive " glue " that links the entire project together.