What is the correct driving technique when encountering a severe dust storm or blowing sand in Bahrain?

1. Reduce speed, turn on low beam (dipped) headlights, increase following distance to 4+ seconds, and avoid using hazard lights while in motion
2. Turn on high beam headlights and hazard warning lights while driving at maximum highway speed
3. Stop dead in the fast lane with engine running until the dust settles
4. Drive on the unpaved desert shoulder to avoid road traffic