"The Open Door Policy was a policy between China, the US, Japan, and several European powers that stated each of those countries should have equal access to Chinese trade."
Answer:
A. US troops arrested many of the strikers
I believe the answer is: A.a New York businessman who relocated to Mississippi
Carpetbagger refers to the people who are perceived to take advantage of unstable political situation in the country in order to obtain financial profit. The most likely people who called a carpetbagger are most likely businessman from northern states who tried to explain their influence on the southern states by bringing technological advancement.
It would be primarily in a "socialist" economic system that the government controls the businesses that affect most citizens, such as railroads and electrical power, since wealth in this system is largely "redistributed" through the federal system.
At its peak the Inca city of Cuzco had between 100,000 and 300,000 people.