Which of these actions is most appropriate when you see a stale green light ahead while driving?

When approaching a stale green light, slowing down and being ready to stop is the most appropriate action. A stale green light is one that has been green for an extended period, indicating that it could change to yellow or red at any moment. By reducing your speed and preparing to stop, you are ensuring that you can respond appropriately if the light changes. This action maintains safety for you and other road users since it helps prevent potential accidents that could result from running a red light. Remaining alert and cautious in this situation is crucial, as it allows you to react to any unexpected circumstances, such as a pedestrian crossing or a vehicle stopping suddenly in front of you.