Why are gravel roads considered dangerous for motorcycle riders?

Answer: B — They provide less traction

Gravel roads are considered dangerous for motorcycle riders primarily because they provide less traction. Unlike paved surfaces that offer consistent grip for tires, gravel can create a slippery surface, especially in certain conditions such as rain or loose rocks. This reduced traction can lead to difficulty in controlling the motorcycle, particularly when braking or making turns. Riders may find it challenging to maintain stability, which increases the risk of skidding or losing control. While uneven surfaces, poor marking, and hidden obstacles contribute to safety concerns on gravel roads, the lack of traction is the most critical factor. It significantly affects the rider's overall control and handling of the motorcycle, making it crucial for riders to approach gravel roads with caution. Understanding this concept emphasizes the importance of adjusting riding techniques and speed when navigating such terrain to maintain safety.