I would answer C. -European Crusaders, attempting to win back Jerusalem, enslaved most of the Muslim world.- as the answer.
Because they cause a lot of damage like making driving hard, taking down trees, can be very unhealthy to breathe and more. Dust storms were caused by economic and agricultural factor.
HOPE THIS HELPS
The settlers were raided during the year 1609
Depending on which country you talk about it's either the Civil law, as in many European countries, where there are pre-written rules or common law where the decisions are made while judging cases - so UK and it's former colonies.