What is the purpose of a vehicle's anti-lock braking system (ABS)?

The purpose of a vehicle's anti-lock braking system (ABS) is to prevent wheel lockup during braking. When a driver applies the brakes sharply, the wheels can stop rotating, which may lead to a loss of steering control and an increase in stopping distance. ABS works by modulating the brake pressure, allowing the wheels to continue to rotate while braking, ultimately helping the driver maintain control of the vehicle during emergency stops. This feature enhances safety by reducing the risk of skidding and allowing for better maneuverability around obstacles while braking.

In contrast, fuel efficiency, steering control, and acceleration are not related to the primary function of ABS. Fuel efficiency pertains to how well a vehicle uses fuel, steering control is managed by the steering system, and acceleration involves the power and traction systems of the vehicle. Therefore, the correct choice highlights the essential role of ABS in maintaining vehicle safety during braking.