Which of the following levels of the work breakdown structure (WBS) includes an explanation of...

 The Project level of the Work Breakdown Structure (WBS) typically includes an explanation of the purpose of the project. The WBS is a hierarchical and deliverable-oriented deconstruction of a project, and at the highest level, it outlines the final deliverable and the project’s main objectives, including its purpose. This level sets the stage for all subsequent planning and provides the context in which the project will be executed123.

References: The explanation is based on standard project management practices and the general structure of a WBS as described in project management literature and resources. For specific ASQ documentation, one should refer to the ASQ Certified Manager Of Quality/Organizational Excellence study guide and handbook.