The (73) is a hierarchical docomposition of the total scope of work to be carried out by the project team to accomplish the project objectives and create the requirod deliverable.

题干中提到的是“The (73) is a hierarchical docomposition of the total scope of work to be carried out by the project team to accomplish the project objectives and create the requirod deliverable.”（第73题是关于项目团队为实现项目目标和创建所需交付成果而执行的全部工作范围的分层结构）。根据参考答案，WBS（Work Breakdown Structure）是工作分解结构的缩写，它正是描述项目工作范围的分层结构的术语。因此，正确答案是B。