15 Project A has five phases. The Level 1 work breakdown structure (WBS) is provided below. The description shown for WBS ID 5.0 has been named "Manufacturing." Because it is likely that the WBS will be sorted and displayed in various manners and degrees of completeness, the project manager wants to reduce the descriptions ambiguity. WBS ID Description 0.0 Project A 1.0 Project started 2.0 Feasibility 3.0 Design 4.0 Development 5.0 Manufacturing 6.0 Distribution 7.0 Project Completed Which action should the project manager take to move ambiguity toward clarity? Clearly establish the context by adding a uniform label, such as "Phase," to WBS items 2.0 through 6.0 Rename the WBS items 2.0 through 6.0 for each item to form a complete sentence Clearly establish the context by adding a uniform label, such as "Function," only to WBS 5.0 Rename only WBS item 5.0, even if doing so reduces its relevance to the baselines 16 For the Level 1 work breakdown structure (WBS) for Project A, the project manager needs to complete the project's planning phase. WBS ID Description 0.0 Project Orion 1.0 Project started 2.0 Feasibility 3.0 Design 4.0 Development 5.0 Manufacturing 6.0 Distribution 7.0 Project completed Which refinements are necessary in the planning phase? The project's business case must be created. A project statement of work must be added to the project's charter. A legally valid contract between the sponsor and the functional managers must be signed. Measurable goals and specifications for the project need to be established