Computer Science for IGCSE & O level - Hardware (Section 28 - No. 1)

In the context of an anti-lock braking system (ABS), what does the microprocessor use the wheel speed sensors for?

To control the car's acceleration.

To monitor tire pressure.

To detect when a wheel is about to lock up.

To activate the headlights.

The wheel speed sensors detect when a wheel is about to lock up under braking.