What color are signs that indicate road work or construction?

Answer: C — Orange

Signs that indicate road work or construction are colored orange. This specific color is used to alert drivers about temporary traffic control situations, including road work, construction zones, and maintenance activities. The use of orange helps to ensure visibility and increase awareness among drivers, making them more cautious in areas where work is taking place. Yellow signs typically indicate caution or warning, such as curve warnings or pedestrian crossings, but they are not specifically associated with construction. Blue signs are generally used for service-related information, like gas stations or hospitals, while green signs provide directional guidance and information about distances to various locations. Therefore, the choice of orange for construction signs is crucial for safety on the roads.