When driving through dense fog (niebla intensa) in Argentina, what lighting configuration should be used?

1. High-beam headlights (luces altas) to penetrate the fog deeper
2. Low-beam headlights (luces bajas) combined with front and rear fog lights (faros antiniebla)
3. Hazard warning flashers while driving at 80 km/h in the passing lane
4. Turn off all lights to avoid reflections on the windshield