What is an important limitation to remember about relying on your motorcycle's horn?

1. A motorcycle horn is often not loud enough to be heard, so it should supplement—not replace—good lane position and staying visible.
2. A motorcycle horn is louder than a car's, so other drivers will always hear it in time to react.
3. Sounding the horn automatically gives you the legal right-of-way at an intersection.
4. The horn should be held down continuously the entire time you ride through a residential area.