What should you do if your brakes fail while driving?

Answer: B — Pump the brakes and shift to a lower gear

When faced with brake failure while driving, one of the recommended actions is to pump the brakes and shift to a lower gear. Pumping the brakes may help build pressure in the brake lines if the issue is related to a temporary loss of hydraulic pressure. This action can sometimes help slow down the vehicle if the brakes are still partially functioning. Additionally, shifting to a lower gear can help to decelerate the car more effectively than relying solely on the brakes. This method allows the engine to contribute to slowing down the vehicle through engine braking, which can be especially useful when navigating downhill or maintaining control of the car as it comes to a stop. Maintaining vehicle control is crucial in panic situations, and this combination of actions provides the driver with better chances to manage the situation safely.