How should liquids such as fuels be loaded to ensure safe transport?

Answer: A — By distributing the weight evenly and securing the load properly

Distributing the weight evenly and securing the load properly is essential for the safe transport of liquids such as fuels. When liquids are loaded, they can shift during transport due to factors such as acceleration, braking, and turning. An uneven weight distribution can lead to instability, affecting the vehicle's handling and increasing the risk of accidents. Securing the load is equally important to prevent movement and spills, which could have hazardous environmental implications, especially with flammable materials like fuels. Properly tied down loads reduce the risk of cargo shifting and ensure that the vehicle maintains its center of gravity, enhancing safety for the driver and other road users. Considering the other options, filling the tank to maximum capacity can lead to overfilling, which may cause spills and vapor emissions. Loading heavier liquids on top of lighter ones can create a top-heavy situation, making the vehicle prone to tipping. Stacking containers as high as possible may also compromise stability and increase the risk of a load shift, particularly when turning or stopping.