What does a flashing yellow traffic light mean?

Answer: C — Proceed with caution

A flashing yellow traffic light signifies that drivers should proceed with caution. This type of signal alerts you to a potential hazard or a situation that requires extra attention, such as an intersection where the visibility might be limited or where other road users may be present. While a solid yellow light generally indicates that a driver should prepare to stop, a flashing yellow light allows for movement as long as it is safe to do so. It's a reminder that caution is necessary and drivers should be alert to their surroundings, potentially reducing speed and being prepared for any unexpected situations, such as pedestrians crossing or vehicles entering the roadway.