What type of metrics might be included in a USR?

The inclusion of completion percentages, budget variances, and timeline adherence in a Unit Status Report (USR) is crucial because these metrics provide quantifiable evidence of project progress and performance. Completion percentages allow stakeholders to see how much of the project has been completed relative to the initial goals, while budget variances highlight any discrepancies between the projected financial plan and the actual expenses incurred. Timeline adherence measures how well the project is sticking to its scheduled deadlines. Together, these metrics create a comprehensive overview of the project's status, helping to identify areas that are on track or may require intervention.

The other options focus on qualitative aspects or future uncertainties, which do not contribute to the objective tracking of a project's progress.