Which of the following commands moves and resumes in the background the last stopped shell job?

`run` is not a standard shell command for managing job execution in the background.

The `bg` command (background) is a shell builtin that takes a stopped job and resumes its execution as a background process, allowing the user to continue using the terminal for other commands.

The `fg` command (foreground) brings a background or stopped job to the foreground, which is the opposite of moving it to and resuming it in the background.

`back` is not a standard job control command in common shells like Bash.