How should a driver position their headrest?

Positioning the headrest at the same height as the back of the head is crucial for effective crash protection. When the headrest is aligned properly, it can prevent the head from snapping backward in the event of a collision, which is a common cause of whiplash injuries. A headrest that is positioned too low or too far back does not provide adequate support and fails to shield the head and neck from sudden movements, which can lead to serious injuries.

It is essential that drivers adjust their headrest to this optimal position to enhance their safety while traveling. This adjustment should generally ensure that the midpoint of the headrest is aligned with the back of the head, allowing it to absorb the impact of a rear-end collision effectively.

In contrast, positioning the headrest at the lowest setting sacrifices this safety feature for comfort, while adjusting it too high or too far back could inhibit visibility and awareness of the surrounding environment. Therefore, option B is the best approach to ensure both safety and support in the event of an accident.