Which factor leads to more motorcycle crashes than the others?

Answer: C — Riding through intersections

Riding through intersections leads to more motorcycle crashes than the other factors listed. Intersections are high-risk areas for all road users, including motorcyclists, due to multiple factors such as the increased possibility of a driver failing to yield, distractions, limited visibility at crossroads, and vehicles turning across the path of the motorcycle. Therefore, being cautious and vigilant while riding through intersections is crucial to reducing the risk of accidents and ensuring rider safety. Changing lanes, riding on straight roads, and merging onto highways are also important aspects of motorcycle riding, but statistically, intersections pose a higher likelihood of accidents for motorcyclists.