Answer:
D)The work package
Step-by-step explanation:
WBS(work breakdown structure) helps to bring down the project scope to deliverables, it can be applied to tasks, project as well as programs. It defines, and bring about organization of the work. WBS has different levels and each level is unique, with the highest level having "project ultimate goal" follow by another level of "project objectives" follows by another level of project outputs and activities. Generally speaking, the lowest level in the WBS is referred to as work package. work package are also known as "terminal element"of a WBS whereby the deliverables is been decomposed to different components.