When should headlights be used?

Answer: B — In bad weather conditions and low visibility

Headlights are essential for enhancing visibility when driving in adverse conditions. They should be used in bad weather conditions, such as rain, fog, snow, or any situation where visibility is significantly reduced. This use ensures that you can see the road and other vehicles clearly while also allowing other drivers to see you. While using headlights at night is important for safe driving, it is not the only time they should be utilized, making the other options less comprehensive. Driving in rural areas or at high speeds may require headlights, but they are not limited to those specific scenarios. The use of headlights in various conditions is a crucial aspect of safe driving practices.