What should you do when smaller, faster vehicles attempt to pass you?

Answer: B — Slow down and let them through

When smaller, faster vehicles attempt to pass you, slowing down and allowing them to proceed is the safest course of action. This approach helps to reduce the risk of a collision and creates a safer environment on the road. By decreasing your speed, you're providing ample space and time for the other vehicle to complete its maneuver, which can be particularly important when navigating tight or congested areas. This behavior is aligned with defensive driving practices, where the aim is to anticipate the actions of other road users and take steps to ensure everyone's safety. In situations where faster vehicles are trying to overtake, it’s wise to prioritize safety over maintaining your speed. The other options do not contribute to safe driving. Speeding up might lead to a dangerous race between vehicles, leaning out of your window can be distracting and isn't a constructive way to communicate, and blocking their path is aggressive and likely to provoke an accident. Each of these alternatives increases the risk on the roadway, making option B the most responsible choice.