How should a driver handle approaching roadside street vendors (zungeiras) or informal markets along urban Angolan thoroughfares?

1. Reduce speed well in advance, increase lateral safety distance, scan for sudden pedestrian movements between vehicles, and cover the brake pedal
2. Sound the horn continuously to force vendors off the road while maintaining maximum speed
3. Accelerate to pass the market zone as quickly as possible
4. Drive along the sidewalk to avoid road congestion