Answer: America did not pursue a colonial policy, unlike European countries.
Explanation:
And while Britain, Spain, France, Portugal, Belgium, and other imperialist powers colonized almost the entire world, America did not have these pretensions. The United States has expanded its territorial integrity but has not sent overseas expeditions to other continents to exploit those countries' natural and mineral resources.
Because Arabia was mostly desert it was almost impossible to farm, so the beoudin were pastoralists instead.
The answer would be Agriculture
I know this because I have had a test with same question and it was correct
Hope it helps