A work breakdown structure (WBS) is a tool
题型：单项选择题
问题：
A work breakdown structure (WBS) is a tool used to define and group a project's discrete work elements in a way that helps organize and define the total work scope of the project. A WBS is most useful for ______.
A．identifying individual tasks for a project
B．scheduling the start of tasks
C．scheduling the end of tasks
D．determining potential delays