What command is used to remove the directory?

Answer: Option D

The rmdir command is used to remove directories in Linux.
When you want to delete an empty directory from your system, you use the rmdir command followed by the directory name.
It stands for "remove directory".
It's important to note that this command only works for empty directories. If the directory contains any files or other directories, you need to use the rm command with appropriate options to remove them.
So, in summary, to remove directories in Linux, you'd use the rmdir command.