Azure Boards is the correct option.

Azure Boards provides work item tracking along with product backlog management and sprint planning tools. It includes Kanban boards, sprint backlogs, queries, and dashboards so teams can visualize progress and manage work through iterations.

Artifact Registry is incorrect because it is a package and container artifact storage service and not part of Azure DevOps for managing backlogs or sprints.

Azure Repos is incorrect because it offers source control hosting such as Git repositories and pull request workflows and it does not provide backlog or sprint planning features.

Azure Pipelines is incorrect because it is focused on continuous integration and continuous delivery for building testing and deploying code and it does not handle product backlog management or work item visualization.

Full AWS Practitioner Certification Question