Which situation requires heightened alertness from a motorcycle rider?

Answer: B — Riding in poor weather conditions

Riding in poor weather conditions requires heightened alertness from a motorcycle rider because these conditions significantly impair visibility and traction, making motorcycle control more challenging. Factors such as rain, fog, snow, or strong winds can lead to slippery surfaces and decreased stopping distances. In these situations, a rider must be more vigilant about their surroundings and adapt their riding strategy to maintain safety, which includes reducing speed, increasing following distances, and being prepared for sudden changes in road conditions. Awareness of how weather affects both their motorcycle and other road users is essential for safe riding.