Decomposing tasks into smaller activities can be helpful in reducing the amount of stress associated with overwhelmingly large milestones. What is a feature of the hierarchical nature of the WBS?

A) A WBS hierarchy prevents duplication

B) A WBS cab be rolled up or collapsed to provide information at the appropriate level for a particular audience.

C) The decomposition of tasks provides a detailed planning tool

D) The depth of a WBS is restricted to three levels, which avoids overplanning