What is the main difference between a hard link and a symbolic link in Linux?
AA hard link can only link to directories; a symbolic link can only link to files.
BA hard link is a shortcut to a directory; a symbolic link is a shortcut to a file.
CA hard link points directly to the file's data, sharing the inode; a symbolic link points to the file name.
DA hard link uses <code>ln -s</code>; a symbolic link uses <code>ln</code>.