Question

in a wbs, which type of package is the lowest level of a work breakdown structure for which cost and duration are managed? planning deliverable phase work

Explanation:

In a Work Breakdown Structure (WBS), the lowest level package, where cost and duration are managed, is called a work package (referred to here as "Work"). Phases are high-level divisions, deliverables are the end outputs, and planning is a process, not a WBS package level.

Answer:

Work