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What should be observed when positioning the head rests in your car?
The top of the head should be level with the upper edge of the head rest
The spacing between the rear of the head and the head rests should be as small as possible
The upper edge of the head rest should conjoin with the upper neck vertebra
Here is Our AI Assistant's Explanation
Your answer is correct because in German traffic safety, the head rest is crucial to prevent whiplash injuries in rear-end collisions. The top of your head should be aligned with the top edge of the head rest (option 1) to provide proper support, while the space between the back of your head and the head rest (option 2) should be minimal to reduce movement during impact. Option 3 is incorrect because the head rest should support the head itself rather than just the upper neck vertebra. Proper adjustment minimizes injury risk in accidents.