How should cargo be distributed in a vehicle to ensure safety?

Answer: B — Heaviest parts should be placed at the lowest positions

Distributing cargo by placing the heaviest parts at the lowest positions within the vehicle is crucial for maintaining stability and minimizing the risk of tipping over. This approach ensures that the center of gravity is lowered, which enhances the vehicle's handling, especially during turns or in adverse conditions. When the heaviest items are positioned higher or unevenly distributed, it can lead to a higher center of gravity, making the vehicle more susceptible to rollovers. Additionally, concentrating all cargo in one area, such as the front of the vehicle, can negatively affect weight distribution and steering, leading to poor control. Even spacing of cargo is important as well, but prioritizing the weight distribution by placing heavier items lower provides a safer overall balance for the vehicle during operation.