How can a driver help prevent rollovers in large vehicles?

The correct choice focuses on techniques that enhance the vehicle's stability and handling, particularly emphasizing the importance of maintaining a lower center of gravity and avoiding sharp turns.

Large vehicles, such as trucks and buses, are inherently more susceptible to rollovers due to their height and weight distribution. A lower center of gravity minimizes the risk of tipping over during maneuvers like turning. This is because when a vehicle turns, the weight shifts, and a higher center of gravity increases the likelihood of a rollover.

Additionally, avoiding sharp turns is critical. Sharp turns can cause a sudden shift in weight distribution, potentially leading the vehicle to exceed its stability threshold. By taking turns at a slower speed and making wider, smoother turns, drivers can significantly reduce the risk of rollovers.

In contrast, options like increasing speed on turns would exacerbate the problem, making it more likely for the vehicle to lose balance. Driving with the windows down doesn’t affect the vehicle's stability in this context, and using larger tires can sometimes improve traction but would not necessarily lower the risk of rollover incidents significantly. Therefore, maintaining a lower center of gravity and avoiding sharp maneuvers are essential for promoting safe driving practices in large vehicles.