What does a sign with a fluorescent yellow-green background indicate?

• It indicates a construction zone or work area.
• It provides information such as distances to destinations.
• It indicates a school zone, school area, or school crosswalk.
  Explanation:

  "Signs with a fluorescent yellow-green background are highly visible warning signs used in areas with high pedestrian activity, such as school zones, school crosswalks, and pedestrian crossings. They help alert drivers to be extra cautious and reduce speed."
• It warns drivers about potential hazards or changes in road conditions.