Changing Lanes: When changing lanes what four things must you do?

• A. Use your mirrors; Check Blind Spots; Signal your intentions; Change lanes gradually and carefully
• B. Use your mirrors; Signal your intentions; Change lanes gradually and carefully
• C. Check Blind Spots; Use your mirrors; Signal your intentions
• D. Change lanes gradually and carefully

Answer: (A)

Safe lane changes require a clear sequence of awareness and controlled action. Start by using your mirrors to keep track of traffic around you—what’s in front of you, behind you, and in the lanes beside you. Then perform a quick blind-spot check because mirrors can’t reveal everything; a vehicle could be occupying a space you can’t see without looking over your shoulder. Signal your intentions so other drivers know you plan to move over, giving them time to react. Finally, move into the target lane gradually and carefully, adjusting speed as needed to merge smoothly and maintain control.

The other options miss one or more essential steps: skipping the blind-spot check, or the signaling, or the gradual, controlled motion. Each of those omissions can lead to a collision or near-miss, so including all four steps makes the safest lane-change practice.