Where should a driver not attempt to pass another vehicle on a two-lane road?

Passing another vehicle safely requires clear visibility and sufficient space to execute the maneuver without endangering yourself or other road users. Attempting to pass at the top of a hill or curve is particularly hazardous because visibility is significantly limited. Drivers cannot see oncoming traffic or any obstacles in their lane, increasing the risk of a collision.

In contrast, it is usually safer to pass in areas where visibility is clearer, such as straight stretches of road. While other options may also present certain risks or legal prohibitions, the severe danger presented by the lack of visibility at hills and curves makes it especially unsafe to pass in these locations. Therefore, this choice highlights a critical principle of driving safety: ensuring a clear line of sight before attempting to overtake another vehicle.