The Work Breakdown Structure (WBS) is a key project deliverable that organizes the team's work into manageable sections. The Project Management Body of Knowledge (PMBOK) defines the work breakdown structure as a "deliverable oriented hierarchical decomposition of the work to be executed by the project team." This option is the most effective way to manage large and complex deliverables that cannot be assigned to a single person. References: PMBOK Guide, 6th Edition, Section 5.4: Create WBS