What is true about the owner of a file?

Each file in a Linux system is associated with a single owner and belongs to one group, making it unique to that user and group combination. This structure allows for specific permissions to be set for the owner, the group, and others, providing a way to control access to the file based on ownership.

Having a clear ownership model ensures that users have a defined relationship with the files they create, aiding in the organization and management of system resources. This fundamental aspect of file management in Linux helps enforce security and accountability, as actions taken on files can be traced back to the user who owns them.

Other options present misconceptions: files can only have one owner, not multiple, and while root possesses elevated privileges, it is not accurate to say that only root can own files; any user can own files they create. Files do indeed have owners, contrary to the suggestion that they do not.