The safe distance confirmation section on the expressway is used to confirm the safe distance at a vehicle speed of 100 km/h.

ANSWER · A

As shown in the picture, three green signs stand upright, marked 0m, 50m, and 100m, indicating distance. Because the safe distance at 100 km/h should be at least 100 m, drivers can use this section to confirm the safe distance to maintain.

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