Final answer:
The TV/DVD player must be placed behind the driver to avoid distractions. This involves understanding the use of spatial prepositions and driving safety standards.
Step-by-step explanation:
Any TV/DVD player must be placed behind the driver and out of his/her vision. The placement of the TV/DVD player is a key safety consideration to prevent driver distraction. The sentence is testing the understanding of spatial prepositions, which are used to describe the location of something in relation to something else. In the context of driving safety, it is important that all potential distractions, such as TV/DVD players, are positioned so that they do not interfere with the driver's ability to concentrate on the road.