The panel below the sign indicates...
A)the length of the hazardous or restricted stretch.
B)the extent of the hazard or restriction on both sides of the carriageway.
C)the distance to the beginning of the hazard or restriction.Correct
The supplementary panel below accompanying the hazard sign indicates the distance to the beginning of that hazard. In the image for this question, it indicates that 200 metres ahead there is a stretch where the road surface is uneven (bump, dip, or road in poor condition).
If there were two arrows alongside the numbers on this panel, it would then indicate the length (duration) of the hazardous stretch.
If there were two arrows alongside the numbers on this panel, it would then indicate the length (duration) of the hazardous stretch.