Which document breaks the project work into phases, deliverables, and work packages?

• A. Project Charter
• B. Gantt Chart
• C. Work Breakdown Structure (WBS)
• D. Risk Register

Answer: (C)

Breaking the project work into phases, deliverables, and work packages is the function of the Work Breakdown Structure. A WBS organizes the project scope into a hierarchical framework, starting with major deliverables or phases and then subdividing them into smaller components called work packages. This decomposition makes it possible to define responsibilities, estimate cost and duration, and plan resources for each piece, while ensuring no part of the scope is overlooked. The lowest level, the work package, is specific enough to assign to a team and to measure performance. Because the WBS directly ties the project scope to actionable pieces and creates a clear map from big outcomes to individual tasks, it is the most appropriate tool for structuring work this way. In contrast, a project charter authorizes the project at a high level, a Gantt chart presents the schedule without defining the scope decomposition into work packages, and a risk register tracks potential risks and responses.