During the first several months of effort, a project manager reported all metrics at green status. However, during the most recent gate check, many metrics declined to red. Which of the following is the MOST likely reason the project manager was unable to predict the decline?

A. The SWOT analysis was not performed during planning.
B. The KPIs did not contain the required detail.
C. The RACI matrix was not followed.
D. The estimated task durations in the WBS were incorrect.