What should you check using your mirrors while making turns?

Answer: B — The rear of your vehicle

While making turns, it is essential to check the blind spots around your vehicle, which is the area that mirrors may not adequately cover. This ensures that no pedestrians, cyclists, or other vehicles are located in those zones before completing your turn. Checking the rear of your vehicle is important, but the blind spots are critical for safe maneuvering, as they can present hazards that are not visible through standard rear view or side mirrors. Monitoring the fuel gauge is not relevant to the turning process, and ensuring that the passenger side door is secure does not directly contribute to safe navigation through turns. Thus, focusing on blind spots is the most critical aspect of using your mirrors while making turns. This helps prevent accidents and promotes safe driving practices.