When entering a motorway via an acceleration lane (traka za ubrzavanje), what is your right-of-way obligation?

1. You must yield right-of-way to all vehicles moving in the continuous traffic lanes of the motorway before merging
2. Vehicles on the motorway must slam on their brakes to let you merge
3. You have automatic priority as soon as you reach the end of the acceleration lane
4. You must stop at the beginning of the acceleration lane and wait for an empty motorway