The two members of the election board are selected by two bodies in the government and they include the county supervisors, or the district election board.
The correct answer is B) Quota System.
A Quota System is a law that puts a specific limit on how many immigrants can come to a country. The US implemented this type of limit with the Immigration Act of 1924, setting a specific maximum number of immigrants allowed depending on the country.
All of the other option choices were different procedures and loopholes that people had to go through to enter the US at Ellis and Angel Island. This only stopped a small percentage of people from entering the US.
The Age of Imperialism was the time when colonial powers (mainly the European nations) established and colonized vast regions in most especially in Africa and South America, in order to gain political, economic, and military power. It basically began on the late nineteenth century (1870's) until the early 20th century (c. 1914).