When descending a long hill, you should apply the brakes how?

Answer: B — Periodically

When descending a long hill, applying the brakes periodically is essential for maintaining control of the vehicle and ensuring safe travel. This technique helps to prevent brake overheating, which can lead to brake fade and a loss of stopping power. By applying the brakes at intervals rather than continuously, you allow them to cool down between applications, maintaining their effectiveness throughout the descent. Additionally, periodic braking allows the driver to gauge the vehicle's speed and adjust their braking to suit the slope of the hill and the load of the vehicle. This method increases safety by enabling better handling and control, which is crucial on long, steep declines where the risk of losing braking ability can escalate.