Which of the following represents the directory permissions to provide least privilege for publicly readable directories on a Unix web server?

777 (rwxrwxrwx) grants all users including anonymous others full write access, violating least privilege by allowing unauthorized file creation, modification, or deletion.

772 (rwxrwx-w-) gives others only write permission with no read or execute, making the directory unreadable to the public while introducing an unnecessary write vulnerability.

The permission 775 (rwxrwxr-x) gives the owner and group full control while restricting others to read and execute only. Read permission allows file contents to be served, and execute permission on a directory is required for users to traverse or list it; withholding write permission from others enforces least privilege correctly for a public web directory.

771 (rwxrwx--x) grants others only execute permission, allowing directory traversal but blocking file reads, which prevents public access to the directory contents.