Which of the following factors indicates good judgment and coordination in prospective drivers?

Driving 4,000 accident-free miles is a significant indicator of good judgment and coordination in prospective drivers. This mileage demonstrates not only a considerable amount of experience behind the wheel, but it also reflects a driver's ability to navigate various driving conditions, respond appropriately to potential hazards, and maintain control of the vehicle over an extended distance. Accident-free miles imply that the driver has effectively applied defensive driving techniques and exhibited good decision-making skills, making it a strong metric for their competence and safety on the road.

While other factors like driving experience, attendance in safety courses, and possession of a commercial driver's license may contribute to a driver’s skills and qualifications, the emphasis on a substantial distance driven without any incidents specifically showcases a proven track record of safe driving behavior, which is crucial for evaluating good judgment and coordination.