Why are harnesses with connection points high on the back preferred for entrants?

Harnesses with connection points high on the back are preferred for entrants primarily because they provide a smaller profile. This design minimizes interference with the entrant's movements and reduces the risk of snagging on nearby surfaces, which can be especially important in confined spaces. A smaller profile allows for greater ease of movement and helps ensure that the harness does not impede the entrant's ability to navigate through tight areas safely.

The other options do not adequately address the specific advantages of having the connection point high on the back. While some may offer their own benefits, they do not align with the primary safety and functionality concerns that the design aims to resolve in confined space environments.