Which feature helps clients verify project milestones and completion?

The feature that helps clients verify project milestones and completion is effectively represented by the option referring to Completions. This feature focuses on the processes involved in assessing and confirming the completion of specified tasks and milestones within a project.

Completions typically include a system for tracking when certain parts of the project have been finalized, ensuring that everything aligns with the timeline and expectations set forth in the project plan. It provides a structured way to confirm that all necessary work has been completed and meets the required standards before officially marking a milestone as met.

This process not only aids in organizing the workflow but also enhances communication with stakeholders, allowing them to easily verify progress and completion at various stages of the project lifecycle. Using completions as a method ensures accountability and transparency, which are crucial aspects of project management.