According to the PMBOK® Guide, a Project Management Office (PMO) is an organizational structure that standardizes the project-related governance processes and facilitates the sharing of resources, methodologies, tools, and techniques.

Strategic Alignment: The primary function of a PMO is to ensure that projects are not just completed, but that they are the right projects to meet the organization ' s strategic goals. This involves high-level prioritization and ensuring that the portfolio of projects aligns with business objectives.

Types of PMOs:

Supportive: Provides templates, best practices, and training (Low control).

Controlling: Provides support and requires compliance with frameworks and tools (Moderate control).

Directive: Actually manages the projects; project managers report directly to the PMO (High control).

Coordinated Management: The PMO facilitates the " big picture " view of resources. For example, if two projects need the same specialized engineer, the PMO coordinates that resource to prevent bottlenecks.

Knowledge Management: PMOs act as a central repository for " Lessons Learned, " ensuring that mistakes made on one project are not repeated on others within the organization.

Comparison with other options:

B. To coordinate and manage the procurement...: While a PMO might provide procurement templates or oversight, the actual administration of procurement and charters is usually handled by the Project Manager or the Legal/Procurement department.

C. To administer performance reviews...: This describes a Functional Manager or HR Department role. While a Directive PMO might review a PM, a PMO is not typically a payroll or general personnel office.

D. To focus on the specified project objectives...: This is the primary function of a Project Manager. The PMO focuses on the system of projects and the standardization of management, whereas the PM focuses on the specific scope, schedule, and cost of their assigned project.