How can a driver safely back up a commercial vehicle?

Answer: A — Use a spotter if available and check all mirrors before proceeding

To safely back up a commercial vehicle, utilizing a spotter if available and checking all mirrors before proceeding is the best practice. This approach enhances safety as the spotter can provide guidance and warnings that the driver may not see from the cab, particularly in areas with blind spots. Furthermore, checking all mirrors ensures that the driver is aware of the surrounding environment, including pedestrians, obstacles, and other vehicles, which is crucial for avoiding accidents. Using a spotter and mirrors fosters a comprehensive awareness of the vehicle's surroundings, allowing for a safer and more controlled backing maneuver. This practice acknowledges the limitations of mirrors and helps mitigate the risk of incidents that can occur when visibility is compromised.