How do political parties raise money and how does congress regulate fundraising?

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.

Three broad zones with different climates and resources shape russian life. they include:

-what is one question you might ask after reading the fred munguia's story?