At an uncontrolled intersection where neither traffic signs nor traffic lights are present, what rule determines the order of passage between approaching motor vehicles?

1. The right-hand rule (pravilo desne strane): every driver must yield right-of-way to vehicles approaching from their right
2. The vehicle travelling on the wider asphalt road always has priority
3. The vehicle travelling straight ahead always has priority over turning vehicles from the right
4. The driver who flashes their headlights first takes priority