What does a flashing yellow light mean?

Answer: D — Use extreme caution and reduce speed

A flashing yellow light indicates that drivers should use extreme caution and reduce their speed. This signal is designed to alert drivers to proceed carefully, typically through an area where there may be pedestrians, potential hazards, or cases where the traffic flow may be more complex, such as intersections or construction zones. While drivers are not required to stop at a flashing yellow light, recognizing that they should reduce their speed allows them to maintain greater control of their vehicle and better react to any unforeseen circumstances. This understanding helps ensure both the driver's safety and the safety of others on the road. The essence of a flashing yellow light is about being vigilant and cautious in the given environment.