When driving at night, in which situations must a driver refrain from using high beam headlights (luzes de estrada / máximos) under the Angolan Highway Code?

1. When crossing oncoming vehicles, people, or animals, when following within 100 metres of the vehicle ahead, and while the vehicle is stopped or stationary
2. Only when entering a motorway
3. Only when a traffic police officer is present on the roadway
4. High beams must never be dipped outside illuminated city streets