During the implementation phase of a digital workflow automation project, several departments resist adopting the new system, leading to delays and reduced effectiveness. The project manager notices that while training was provided, user engagement remains low. Which of the following best explains the root cause of this issue?The implementation team failed to use the waterfall model to sequence tasks correctlyThe communication plan focused too much on technical milestones and not on change impactsFunctional requirements were over-documented, reducing agility during rolloutTesting activities were delegated to end-users without formal oversight The project's risk management plan lacked quantitative risk analysis