How often should you check your mirrors while driving?

Answer: B — Regularly and whenever changing lanes or merging

The correct choice emphasizes the importance of regularly checking your mirrors throughout the driving process, not just during specific maneuvers like changing lanes or merging. Regularly checking mirrors ensures that you remain aware of your surroundings and can react promptly to any potential hazards, such as vehicles that may be in your blind spots or other road users who are approaching. This constant vigilance is crucial, especially for large vehicles, where blind spots can be more extensive. By actively monitoring your mirrors at all times, you enhance your situational awareness, contributing to safer driving behaviors overall. The integration of this practice into your driving routine can prevent accidents and ensure compliance with safety regulations. Thus, this approach reflects the recommended driving practices for maintaining safety on the road.