What do the following signs indicate?

What do the following signs indicate?
A)Proximity to a water channel 200 m ahead.
B)Maximum distance that vehicles must maintain on that stretch of road.
C)That 200 m ahead there is a bump or dip in the road or a road surface in poor condition.Correct
The upper sign indicates danger due to the proximity of a bump or dip in the road or a road surface in poor condition. The lower supplementary panel accompanying the danger sign indicates the distance to the beginning of said hazard. If there were two arrows next to the numbers on this panel, it would indicate the length of the hazardous stretch.