Off-tracking or cheating causes which of these to follow the wider path while making a turn?

When a vehicle goes around a corner, the rear wheels follow a different path than the front wheels. This is called offtracking or \"cheating.\" Longer vehicles will offtrack more. The rear wheels of the powered unit (truck or tractor) will offtrack some, and the rear wheels of the trailer will offtrack even more. If there is more than one trailer, the rear wheels of the last trailer will off-track the most.