What should a rider do if another vehicle is tailgating them?

Answer: B — Slow down to encourage them to pass

When a rider is being tailgated, slowing down to encourage the tailgater to pass is often the safest approach. This action can create a larger gap between the rider and the vehicle behind, reducing the risk of a collision if the tailgater is following too closely. By decreasing speed, the rider provides an opportunity for the tailgater to overtake them in a safer manner. This strategy is particularly effective because it helps to eliminate the pressure that comes from having another vehicle so closely behind, which can be distracting and increase the likelihood of making a mistake. Additionally, the rider maintains control of the motorcycle, avoiding sudden movements that could lead to instability. Other options, like speeding up, might increase the danger by prompting the tailgater to react aggressively. Signaling to back off could create confusion and isn't likely to be effective in reducing the tailgater’s speed. Ignoring the situation fails to address the immediate risk of being closely followed, leaving the rider vulnerable. Thus, slowing down allows for a controlled, proactive response to the tailgating issue.