What is one direct benefit of seat belt use mentioned in the context of CMV drivers?

Answer: B — Preventing fatalities

One direct benefit of seat belt use for commercial motor vehicle (CMV) drivers is the prevention of fatalities. Seat belts are a critical safety feature that significantly reduce the risk of serious injury or death in the event of a crash. When drivers wear their seat belts, they are secured in their seats and less likely to be ejected from the vehicle or collide with the interior structures during a collision. This aspect of restraint and protection is essential, especially in the context of larger vehicles, where the momentum and impact forces can be considerable. By emphasizing the importance of seat belts, the focus shifts towards enhancing overall safety on the road, ultimately contributing to a reduction in the number of fatalities among CMV drivers and their passengers. This benefit aligns with broader safety initiatives in the trucking industry aimed at protecting drivers and reducing accidents.