Which of the following conditions can lead to hazardous driving conditions?

Hail can significantly impair driving conditions due to its potential to create a slippery road surface and reduce visibility. When hail falls, it can accumulate quickly, particularly on flat surfaces like roads, making them dangerous for drivers. The ice pellets can also cause vehicles to lose traction, increasing the risk of skidding or losing control, particularly for vehicles that do not have appropriate tires for such conditions.

Furthermore, hail typically accompanies severe thunderstorms, which can include heavy rainfall, strong winds, and reduced visibility - all of which contribute to hazardous driving conditions. Therefore, hail stands out as a serious factor that can lead to direct, dangerous impacts on driving safety.