What should drivers always do when following another vehicle at night?

Answer: C — Switch off high-beam headlights

When driving at night and following another vehicle, it is important to switch off high-beam headlights. High-beam headlights can be very bright and can blind drivers in front of you through their rear-view mirrors, reducing their visibility and response time. Using high beams can also create a dangerous situation, as it can make it more difficult for the vehicle ahead to see the road clearly and can result in impaired vision for both drivers. Instead, using low-beam headlights allows for better visual compliance with traffic regulations and consideration for the comfort of other drivers on the road. This practice enhances overall safety for everyone sharing the roadway at night.