What action should you take if you experience brake failure?

Answer: A — Shift to a lower gear and pump the brakes

If you experience brake failure while driving, shifting to a lower gear and pumping the brakes is a crucial action to take. Lowering the gear helps to increase engine resistance, which can slow the vehicle down without relying solely on the braking system. Pumping the brakes may help build up brake fluid pressure and may restore some braking ability in hydraulic brakes. This approach emphasizes maintaining control of the vehicle while you look for a safe way to bring it to a stop. It's important to note that simply relying on the emergency brake alone can lead to skidding or loss of control, especially if the vehicle is traveling at a high speed, and pulling over immediately without taking these steps might not be feasible or safe depending on traffic conditions. Turning to acceleration as a response can create a hazardous situation, as increasing speed would make it more difficult to control the vehicle and find a safe stopping point.