When driving on hills, what should you be cautious of?

Answer: D — All of the above

When driving on hills, it is important to be aware of a variety of potential hazards that can arise due to the terrain and visibility challenges. Being cautious of all listed factors is crucial for safe driving. Traffic lights can be difficult to see on inclines or declines, especially if they are positioned at the bottom or top of a hill. A driver may not have adequate time to react to a light changing from green to red if they are approaching rapidly downhill. Oncoming vehicles pose a risk as well, particularly on narrow roads. The steepness of a hill can make it hard to judge the distance or timing for passing other vehicles safely. Uphill traffic may also have the right-of-way depending on the circumstances. Blind spots become more pronounced on hills due to the angle of the road. It's essential to check these areas thoroughly when considering lane changes or turns, as other vehicles may be approaching unexpectedly from below or above. Thus, being cautious of traffic lights, oncoming vehicles, and blind spots collectively enhances safety when driving on hilly terrain.