They were mainly agriculture based and slavery was free labor.
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.
Answer:
A. European powers divided China into spheres of influence, while the United States promoted an Open Door Policy.
Explanation:
Unlike Europeans, they tried to make China a sphere of influence of their countries by turning China into a subsidiary or satellite state to their sociopolitical and economic activities in the Asian continent. The United States on the other hand created an Open Door Policy that gives equal privilege to China, its territories, and the countries that are trading with China.
Hence, the right answer is option A.