A bus driver should wear a seatbelt...?

Answer: C — At all times

A bus driver should wear a seatbelt at all times to ensure their safety as well as the safety of passengers and others on the road. Wearing a seatbelt is a fundamental safety practice that protects drivers from potential injuries during sudden stops or collisions, regardless of the driving conditions, such as highway speeds or urban traffic. In a bus setting, the driver has a critical responsibility not only for their own safety but also for the well-being of passengers. Even when carrying passengers, the importance of consistent seatbelt use remains, reinforcing safe driving habits. The law generally mandates seatbelt use, emphasizing that a driver should always buckle up when operating a vehicle. This applies universally, promoting responsible and safe driving behaviors at all times.