During trip navigation, how should an online ride-hailing driver determine the driving route?

1. The driver should arbitrarily pick whichever route has the most scenic views regardless of distance
2. The driver should follow the navigation-recommended route or negotiate and agree upon a specific preferred route with the passenger before proceeding
3. The driver must always take the longest route possible to maximize vehicle battery efficiency
4. The driver must strictly ignore passenger route requests and drive without GPS navigation