When should high beams be used?

Answer: B — When it is safe and legal to do so

High beams should be used when it is safe and legal to do so because they provide better illumination of the road ahead, improving visibility for the driver. High beams are particularly useful in dark, rural areas where there is little or no ambient light. However, they must be used responsibly to avoid blinding other drivers, which is why it's crucial to only activate them when conditions allow it without compromising safety for yourself or other road users. In certain weather conditions, like fog, rain, or snow, high beams can create a glare and reduce visibility, making it inappropriate to use them in those circumstances. Thus, understanding when it is safe and legal is essential for the proper use of high beams.