Answer:
Good option: The limiting of the number of people allowed to immigrate to the United States.
Explanation:
After World War I, fearing the coming of communist agents and Soviet influence, plus outright xenophobia, immigration quotas were set by the Immigration Act of 1924. Only 2 percent of immigrant visas were issued for people of the nationalities that already we found on American soil in the 1890 census. Western and Northern European nationalities were favored by the new laws. The Act excluded immigrants from Asia, except from the Philippines, an American colony by then.
They were most likely feeling proud spirtual and happy
This is shown in this part of the hymn.
Glory! Glory! Hallelujah! Glory! Glory! Hallelujah
Glory! Glory! Hallelujah! His truth is marching on
The population was 316574,9
That's what I got from this website.
http://www.populstat.info/Asia/chinac.htm