When do you need outside rear view mirrors on your vehicle?

Answer: B — If a load or trailer obscures the normal view

Outside rear view mirrors are essential when a load or trailer obscures the normal view because they enhance visibility and help ensure安全 driving. When carrying loads or towing trailers, the view through the rear window can be significantly blocked, making it difficult for the driver to see vehicles or obstacles behind them. Equipping the vehicle with outside rear view mirrors allows for a clearer perspective of the surrounding traffic and aids in making informed decisions while changing lanes or reversing. This safety feature is particularly crucial in preventing accidents that may arise due to blind spots created by the load or trailer.