What does a repository in version control contain?

A repository in version control is designed to maintain a complete history of a project as it evolves over time, which includes all changes made to the code and other files associated with the project. This historical record allows developers to track modifications, understand the evolution of the project, collaborate with others, and revert to previous versions if necessary. The ability to view this history is valuable for debugging, understanding past decisions, and maintaining project continuity. Thus, the essence of a version control repository is to provide a comprehensive archive that encapsulates the entire lifecycle of the project, making option B the correct choice.

The other choices do not accurately represent the key function of a version control repository. Temporary files from users' devices do not belong in a repository as they aren’t integral to the project’s history. A repository does not solely keep the most recent version of software; it maintains every version and the changes made. While having documentation for coding standards is useful, it is not the primary content of a repository, which focuses more on version histories and the files relevant to the project development.