The correct answer is C (Comments). A dashboard is a Power BI service canvas made from pinned tiles. Tile behavior, themes, mobile layout, and pinning are managed separately from the report page that supplied a visual. The technical decision turns on how to ensure that consumers of the dashboard can give you feedback that will be visible to the other consumers of the dashboard. Editing only the source report does not necessarily update an existing dashboard tile's type, placement, theme, or phone layout. For exam alignment, this is assessed under 'Create dashboards' in the current study guide. This keeps service access and operational behavior within the scope requested instead of granting or changing unrelated capabilities.

Microsoft Learn reference: https://learn.microsoft.com/en-us/power-bi/create-reports/service-dashboard-tiles | PL-300 objective: 'Create dashboards' | Study guide: https://learn.microsoft.com/en-us/credentials/certifications/resources/study-guides/pl-300