What happens when you merge branch A into branch B?

When merging branch A into branch B, the process combines the changes made in both branches. Specifically, the commits from branch A are integrated into branch B, effectively adding the commit history and changes from branch A to branch B. This means that all the updates, modifications, or new features developed in branch A will now be reflected in branch B after the merge is completed.

This integration allows developers to consolidate their work and ensure that the latest versions of code from different branches coexist in the target branch, which is B in this case. It is an essential aspect of collaboration in version control systems, promoting a cohesive development workflow.

The other options do not accurately describe the merge process. While branch B does include the files and changes from branch A, it does not inherit files in a blanket manner; rather, it incorporates specific commits. The statement that changes in branch A are lost is incorrect as the primary purpose of merging is to retain and integrate those changes. Additionally, a new remote repository is not created in a merge; merging simply combines branches within the existing repository structure.