What must you do before changing lanes?

• A. Check mirrors and blind spots, and signal your intent
• B. Only check the rearview mirror
• C. Signal your intent and change immediately
• D. Check for pedestrians only

Answer: (A)

Before changing lanes, it is essential to check mirrors and blind spots, and signal your intent. This approach ensures awareness of the surrounding traffic conditions and helps avoid potential accidents.

Checking mirrors allows you to see vehicles that are in adjacent lanes, while looking over your shoulder to check blind spots gives a complete view of any vehicles that may be in areas not visible through your mirrors. Signaling your intent is crucial as it communicates to other drivers what you plan to do, allowing them to adjust their speed or position accordingly. This process enhances safety and promotes responsible driving.

The other options present incomplete practices. Relying solely on the rearview mirror does not account for vehicles approaching from the sides, and signaling without checking can lead to unsafe lane changes. Focusing only on pedestrians neglects the presence of other vehicles, which is also critical to consider when changing lanes.