Final answer:
To stop a car when skidding on a slippery road, you should apply pumping action to the brake.
Step-by-step explanation:
When you are driving and you need to stop a car when skidding on a slippery road, the best option is to apply pumping action to the brake. This means applying and releasing the brakes rapidly in order to regain traction with the road. Pumping the brakes prevents the wheels from locking up and helps the car come to a stop more safely.
When you apply a pumping action to the brake pedal, it means you are intermittently pressing and releasing the brake rather than keeping constant pressure. This technique can help prevent the wheels from locking up on a slippery surface, allowing you to maintain control of the vehicle during a skid. It's a method to manage braking force and improve traction.