What factors allowed both urban and rural areas to flourish after the eighth century within the arab empire?

Which of the following is an example of the pull factor known as economic migration? a. better educational opportunities pulling people towards a new country b. mexican laborers entering the us to work in agricultural jobs c. joining family members that are already in a new country d. crop failures driving people away from their country i am unsure on this question, i was thinking b? but i could be wrong.

Ilive in michigan i went to iowa and killed someone i then went to florida for vacation i got caught for the iowa murder wile kicking back on the beach in miami where will i be tried

All of the following were restrictions on free african americans, who lived primarily in the upper south except: