What is considered a severe weather condition that can affect driving?

Answer: B — Heavy rain or snow

Heavy rain or snow are indeed considered severe weather conditions that significantly impact driving safety. These conditions can reduce visibility, create slippery road surfaces, and increase stopping distances, making it more challenging for drivers to maintain control of their vehicles. The presence of heavy rain can lead to hydroplaning, where a vehicle's tires lose contact with the road due to water buildup, heightening the risk of accidents. Similarly, snow can accumulate on roadways, making them hazardous and requiring drivers to adjust their speed and braking distances accordingly. In contrast, sunny weather, calm winds, and light fog do not pose the same level of risk as heavy rain or snow. Sunny conditions generally provide good visibility and stable driving conditions, while calm winds are unlikely to affect vehicle control significantly. Light fog might present some challenges, but it is not as severe a threat as heavy rain or snow, which are known for drastically compromising driving safety.