What command removes a directory and all its contents in Git?

The appropriate command to remove a directory and all its contents in Git is structured as git rm -r -f. In this command, git rm is the Git command used to remove files or directories from the working directory and the staging area.

The -r option stands for recursive, allowing the command to remove directories and their contents, including all files and subdirectories. When the -f option is included, it forces the removal of the files without prompting for confirmation, which is especially useful when you want to ensure that all contents are deleted without any interruptions.

Therefore, this command effectively addresses the need to clean up a directory within a Git repository, making it the correct choice for this task.