What is the 'Off-Tracking' or Swept Path (Schleppkurve) of a long heavy commercial vehicle when turning tight corners?

1. The rear wheels track inside the path of the front steering wheels, requiring the driver to swing wide before turning to prevent rear wheels from mounting the curb or hitting obstacles
2. The rear wheels move faster than the front wheels
3. The truck moves sideways like a crab automatically
4. The front tires lift off the asphalt