What Is a Project Management Office (PMO)

What is a project management office (PMO) ?

A) Measurable, tangible, verifiable outcome, result, or item that is produced to complete a project or part of a project.
B) Represents key dates when certain groups of activities must be performed.
C) An individual who is an expert in project planning and management, defines and develops the project plan, and tracks the plan to ensure the project is completed on time and on budget.
D) An internal department that oversees all organizational projects.