What action is recommended when following another vehicle at night?

Answer: B — Switch to low beams

Switching to low beams when following another vehicle at night is recommended to prevent blinding the driver ahead. High beams can illuminate the road excessively, resulting in glare for the vehicle in front, which could impair their ability to see clearly. This action promotes safer driving conditions for everyone on the road. Additionally, while slowing down to maintain distance could be a wise approach, it does not specifically address the issue of headlight brightness and visibility. Maintaining high beams is inappropriate since it can cause visibility issues for the vehicle being followed. Staying close to the vehicle is also dangerous as it reduces reaction time in case the lead vehicle suddenly stops or slows down, which can lead to collisions. Thus, using low beams is the best choice for both safety and courtesy when driving at night behind another vehicle.