You are travelling on a multi-lane road and want to move to the lane on your right. You signal, check mirrors, and start to move. You notice a vehicle in the right lane close behind you. What should you do?

1. Complete your lane change quickly so the other vehicle can slow down
2. Return to your original lane and wait for a safe gap before attempting the change again
3. Maintain your half-entered position and wait for the other driver to pass
4. Sound your horn to alert the driver in the right lane