What is the rule regarding the use of seat belts (sigurnosni pojasevi) in passenger cars in Bosnia and Herzegovina?

1. The driver and all passengers in seats equipped with seat belts must wear them while the vehicle is in motion
2. Only the driver and front passenger are required to wear seat belts
3. Seat belts are only mandatory when travelling at speeds exceeding 50 km/h
4. Rear passengers are exempt from wearing seat belts in urban areas