What does the sign indicate?
A)Caution, tunnel or section with poor visibility.
B)Dipped headlights compulsory.
C)End of compulsory dipped headlights.Correct
Prior to this sign, we will have encountered another sign requiring us to use dipped headlights, and from this sign we know that the obligation to use such lighting ends, provided it is not required by visibility conditions, time of day, or road lighting.