Final Answer:
If your brakes fail, try to Pump on the brake pedal hard and fast. This technique aims to build up brake fluid pressure, potentially restoring some braking function and aiding in safely slowing down the vehicle. so, the correct option is B. Pump on the brake pedal hard and fast.
Step-by-step explanation:
The correct option is B. Pumping on the brake pedal hard and fast is a recommended response if your brakes fail. This action can help build up brake fluid pressure and potentially regain some braking function. It's a crucial technique to slow down the vehicle and increase the chances of bringing it to a stop safely.
Pump on the brake pedal hard and fast - When facing brake failure, rapidly pumping the brake pedal can create pressure within the brake system. This action aims to restore some braking function by utilizing any remaining brake fluid and can help slow down the vehicle. It's a proactive measure to regain control and increase the likelihood of safely stopping the car.