The correct answer is a. The WBS is organized by PMBOK 6e knowledge area.
Why is this not a way
In the Project Management Body of Knowledge (PMBOK) Guide, the WBS is not typically organized directly by knowledge area.
Instead, it is commonly organized by deliverables, project phases, or work packages. Knowledge areas in the PMBOK Guide cover different aspects of project management but are not the primary basis for organizing the WBS.
complete question
Which of these is NOT one of the three ways to organize a Work Breakdown Structure (WBS)? a. The WBS is organized by PMBOK 6e knowledge area. b. The WBS is organized by project phase. c. The WBS is organized by design components/deliverables. d. The WBS is organized by work function/department.