The creation ofa work breakdown structure (WBS) is the process of（）the major project deliverables.

该题的关键词为"work breakdown structure、 major project deliverables"，其语句结构为"The creation ofa work breakdown structure (WBS)（主语）is（谓语）the processof（）the major project deliverables"，含义为"创建WBS是怎样主要的项目交付物的过程"。根据WBS定义以及选项，容易识别出应选择分解(subdividing)