What aspect does proper cargo securement primarily ensure?

Answer: C — Safety by preventing cargo from shifting or falling

Proper cargo securement primarily ensures safety by preventing cargo from shifting or falling during transportation. When cargo is not securely fastened, it can shift as the vehicle moves, especially during turns, stops, or sudden maneuvers. This shifting can lead to instability and increase the risk of accidents. If the cargo falls off the vehicle, it creates hazards for other road users, including potential collisions and road blockages. Therefore, securement is critical not only to protect the driver and vehicle but also to enhance road safety for everyone. The other options address important aspects of cargo transport, such as fuel economy and theft prevention, but they do not directly relate to the immediate dangers posed by unsecured cargo. Compliance with weight limits is crucial for legal and operational reasons but does not specifically pertain to the safety implications of how cargo is secured during transit.