Your project team is having a dispute with a vendor about whether a specific task is within the scope of the project. The scope statement does not provide implementation level details that would resolve this discussion. There is not a WBS however, because the project sponsor insisted that the project be started right away, without pausing to create standard project planning documentation. Who is at fault?
A. The project manager
B. The project sponsor
C. The project stakeholders
D. The project vendor.