What is used to manage and store changes (versions) to an application and to produce a file for export?

The correct choice is based on the functionality offered by Update Sets in ServiceNow for managing changes to applications. Update Sets are essential for capturing configuration changes made in a ServiceNow instance. They track modifications such as creating, deleting, or updating records, and are specifically designed to facilitate the transfer of these changes between different instances of ServiceNow.

When developers work on different environments (for example, a development instance and a production instance), they can use Update Sets to group related changes together. This allows them to export a comprehensive set of changes as a single package that can be imported into another instance. Update Sets help maintain versioning by allowing developers to pull in previous changes and ensure that the application is consistent across instances.

Version Control is generally a broader concept that applies to managing different versions of software code, whereas Update Sets in ServiceNow provide a specific tool for tracking and transporting configuration changes within the ServiceNow platform. Change Sets and Export Sets do not accurately represent the specific functionality needed for managing application changes and transferring them between instances.