When should a rider particularly maintain a longer following distance?

Answer: B — When road conditions are poor

Maintaining a longer following distance is especially important when road conditions are poor because it allows for greater reaction time in case of unexpected stops or hazards. Poor conditions, such as wet, icy, or gravel roads, can significantly affect braking distance and the overall handling of the motorcycle. By increasing the distance between your motorcycle and the vehicle in front of you, you ensure that you have enough space to maneuver safely, whether that means stopping or adjusting your position. This increased distance can prevent accidents caused by sudden stops or loss of traction, which are more likely to occur in adverse conditions.