Identify the european country that the united states has been having issue with since the late 18th century

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.

How did the protestant reformation and scientific revolution advance individualism and liberal reforms?

What political party won control of both the house and senate in 1946 (known as the 80th congress)?