What is the appropriate action at a steady yellow traffic signal?

Answer: B — Prepare to stop

When you encounter a steady yellow traffic signal, the appropriate action is to prepare to stop. A yellow light serves as a warning that the light will soon change to red. It indicates that drivers should be aware of the change in traffic conditions and take necessary actions to ensure safety. Recognizing the yellow signal as a cautionary indicator is crucial; it requires drivers to assess their situation. If you are far enough back and can safely stop, this is the best course of action to avoid running a red light. Drivers who see the yellow light should avoid accelerating to clear the intersection, as that could create a dangerous situation for themselves and others. Continuing without changing speed or speeding through the intersection would disregard the warning purpose of the yellow light, potentially leading to unsafe outcomes. Similarly, just yielding to cross traffic does not adequately address the need to stop before the traffic light turns red, thereby violating traffic laws and risking accidents.