What should you specifically check right before completing a lane change, in addition to your earlier mirror checks?

Pick an answer

1. Nothing further is needed once the turn signal has been on for a few seconds and traffic looked clear earlier
2. Only your speedometer, to confirm you are at the posted limit
3. Glance over your shoulder or check again to confirm the target lane is still clear
4. Only the fuel gauge, to plan your next stop

Correct!

Not quite. The correct answer is highlighted.