Answer:
B. Anti-foreigner sentiment in China led to the Boxer Rebellion
The Industrial Revolution led Europeans to have better military weapons and this allowed small European armies to defeat larger African and Asian forcer when invading territory. This made possible the colonization of the African continent.
The main objective of the National Origins Act of 1924 was to favor the immigration from Northern and Western Europe. The government did this to tighten the 1921 quota formula for immigration.
I think the answer is In the South.
