Here is an activity about "The Pianist". Can anybody help me with it?

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.

During world war ii, which battle was the first significant us victory in the pacific?

Compare the lives of slaves in mines and farms versus those in households