A ___ is a ___ of ___ in the ___ page that gives users access to different ___.

The correct answer is user story commit. A user story commit is an action associated with the version control system that allows users to record changes or updates made to a specific user story within a development environment. In the context of the page where these actions are displayed, a user story commit serves as a way for team members to access various progress points related to user stories. It helps maintain a history of changes, enabling better collaboration among team members, tracking the evolution of user stories, and optimizing workflow in the software development process.

In contrast, other options do not quite fit the definition or context. For example, a Git operation refers more broadly to commands and actions performed in Git, rather than a specific navigational element for accessing user stories. A repository refers to the storage location for projects and their code, which also doesn't directly indicate user access to individual stories. User story selection involves choosing which stories to work on, but does not imply a commitment to changes or updates in the same way that a user story commit does.