What should you do when approaching a curve in the road?

When approaching a curve in the road, downshifting before entering the curve while also slightly accelerating is the most effective technique for maintaining control and stability. Downshifting allows the vehicle to be in a better gear to handle the turning momentum, helping to prevent skidding or losing traction. This technique places the engine in a power band that can assist with acceleration out of the curve without overwhelming the tires with too much speed or torque.

Slightly accelerating while navigating the curve enables better balance and enhances traction, as it keeps the weight of the vehicle distributed more evenly and can prevent a potential slide. Essentially, this method promotes a smoother and safer turn by allowing for controlled handling of the vehicle.

In contrast, accelerating fully before entering the curve could lead to loss of control, as excessive speed is typically a major cause of accidents in curve situations. Turning on high beams is not relevant for curve navigation and typically would not assist in the driving technique needed for handling turns safely. Lastly, braking hard before entering a curve could destabilize the vehicle, making it more difficult to steer and increasing the likelihood of an accident. Overall, option B helps ensure that the driver remains in control while effectively navigating the curve.