Describe the function of the anti-lock braking system (ABS).

The function of the anti-lock braking system (ABS) is to prevent wheel lock-up during hard braking. When a driver applies the brakes suddenly or with excessive force, the wheels can seize and stop turning, which typically leads to a loss of traction and control of the vehicle. ABS automatically modulates the braking pressure at each wheel, allowing for both effective braking and steering control. This technology enables the driver to maintain steering ability and avoids skidding, significantly improving safety, particularly on slippery surfaces.

In contrast, the other options do not accurately describe the purpose of ABS. Increasing speed during braking would be counterintuitive and dangerous, while reducing fuel consumption is unrelated to the braking process. Assisting in parallel parking pertains to a different aspect of vehicle operation and maneuverability, rather than the braking system's function. Therefore, the correct understanding of ABS focuses on its critical role in enhancing vehicle control during braking scenarios.