What type of sign warns you to slow down for a sharp rise in the roadway?

The correct choice identifies the type of sign that indicates a need to reduce speed due to a sharp rise in the roadway. A bump warning sign serves to alert drivers about sudden changes in the road surface, such as a raised section or bump. This signal is particularly important because it not only encourages a decrease in speed to navigate safely over the bump but also prepares drivers for a potential jolt or unexpected movement of the vehicle.

In contrast, a sharp curve sign warns of a turn in the road ahead, emphasizing the need to slow down when approaching a bend. A road work sign indicates the presence of construction or maintenance activities, alerting drivers to detours or altered traffic patterns rather than changes in elevation. Finally, an incline sign specifically points out when the roadway ascends or descends, but it does not necessarily call for a reduction in speed the way a bump warning sign does. Understanding the specific function of each sign helps ensure safe driving practices.