Why did America become involved in Vietnam

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.

What impact did the gi bill and the interstate highway act of 1957 have on the development of the suburbs

Explain how the roles of both working class and middle and upper class women changed during the industrial revolution. how did those changes lead to the women’s rights and suffrage movements?