Final answer:
The correct answer is (b) Work Breakdown Structure (WBS), which is used by a project team to develop a detailed schedule and organize tasks in layers of detail as part of developing a detailed design.
Step-by-step explanation:
To develop a more detailed schedule, the project team develops a Work Breakdown Structure (WBS) - a description of tasks arranged in layers of detail. During the phase of developing a detailed design after concept selection, the WBS is crucial for further elaborating how each subproblem will be addressed within the overall design. The work breakdown structure is essentially a hierarchical decomposition of the total scope of work to be carried out by the project team to accomplish the project objectives and create the required deliverables. It organizes the team's work into manageable sections, making it easier to assign, track, and manage tasks.
A detailed design includes not only how each subproblem is solved but also the intricate details necessary before manufacturing or implementation can commence. Diagrams, specifications, and detailed documentation are often part of this process.