Description of New France in 1600s

Which sentence is the best explanation of how food surpluses led to a job specialization during the neolithic revolution

How did the constitutional convention deal with slavery , one the most divisive issues of the period

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.