Which of the following is a proper driving practice regarding mirrors?

The practice of always checking mirrors before any maneuver is essential for safe driving. This habit helps drivers maintain awareness of their surroundings and any vehicles or obstacles that may be present. By checking mirrors regularly, particularly before changing lanes, turning, or merging, drivers can avoid collisions and ensure they are making safe decisions based on the current traffic situation. This practice enhances overall situational awareness and contributes to safer driving conditions for everyone on the road.

The emphasis on checking mirrors does not imply that other practices should be neglected; for example, looking around is also important, but mirrors provide a critical view of areas that may not be easily seen. Additionally, adjusting mirrors only before starting a trip could lead to dangerous situations if the driver's seating position changes during the drive. Using mirrors only when changing lanes limits their overall effectiveness as a safety tool throughout all driving maneuvers.