Which of the following is an indicator that you should pull over while driving?

The correct choice, which is when your vision starts to blur, is an important indicator that you should pull over while driving. Blurred vision can significantly impair your ability to see the road clearly, identify other vehicles, and react to changing conditions—all of which are crucial for safe driving. If your vision becomes compromised, it's essential to safely stop your vehicle to prevent potential accidents or dangerous situations.

In contrast, the other options do not warrant an immediate pull-over. Wet roads require caution and may involve reducing speed, but they do not necessarily indicate a need to stop the vehicle. A malfunctioning radio can be distracting but does not directly jeopardize safety. Similarly, while another driver honking may suggest a potential issue, it does not inherently mean that you need to pull over unless it indicates a more significant problem, like a close call or an imminent hazard.