What is the significance of an orange traffic sign?

Answer: B — It indicates construction or work zone ahead

An orange traffic sign is specifically used to indicate construction or work zones ahead. This color is chosen to alert drivers to temporary changes in road conditions due to ongoing construction activities, maintenance work, or other alterations to the roadway that could pose a risk. The use of orange helps to ensure that these signs stand out and capture the driver's attention, making them aware that they need to be extra cautious in that area. In contrast, warning signs that indicate other types of hazards, such as road conditions or curves, typically use yellow. Signs that signify the end of a highway or represent traffic signals use different colors entirely, such as red or green. Thus, the distinctive use of orange is crucial for conveying the presence of construction or work-related hazards effectively.