Which of the following is the safest approach when another vehicle is attempting to merge into your lane from an on-ramp?

1. Adjust your speed and position to create space for the merging vehicle if it is safe to do so
2. Maintain speed and position — the merging vehicle must give way to you
3. Sound your horn continuously to warn the merging driver not to enter your lane
4. Speed up to get ahead of the merging vehicle and prevent it from entering your lane