Both guarantee rights and freedom
The correct answer is A: Drought and D: Better-paying jobs.
In the 1930s, farmers from the Midwestern Dust Bowl states, especially Oklahoma and Arkansas, began to move to California. A drought outbreak in the 1930s allowed dust storms to carry away topsoil, darkening the sky even at mid-day, As families realized that the drought and dust storms would not end, some sold what they could not take and began to migrate southwest. Many hoped to become hired hands on California farms.
You could start off with the news report about how Soviet and U.S almost started another war due to a missile crisis with Cuba or how soviet's government is different from ours. Basically compare and contract Soviet and U.S.
Hopefully this can get you a head start
Have a great day :)
Because it had a great effect on history.