What does a diamond-shaped sign indicate?

Answer: B — Warning of hazards or changes in road conditions

A diamond-shaped sign is universally recognized as a warning sign, which serves to alert drivers to potential hazards or changes in road conditions ahead. This could include warnings about curves, merging lanes, pedestrian crossings, or other situational alerts that warrant caution. The design and color of the diamond shape, typically yellow or orange, are specifically intended to catch attention quickly, indicating that a driver should be prepared to respond to changing circumstances on the road. While other shapes and colors are used to convey different types of information—such as red signs indicating stops or speed limits—none carry the same warning implication as a diamond-shaped sign. This makes it essential for drivers to recognize these signs and adjust their driving behavior accordingly to ensure safety.