Answer:
The first wave of Chinese immigration began as a result of the California Gold Rush.
Chinese labor was important in building railroad lines from the center of the U.S. to the west.
The Chinese Exclusion Act was the first U.S. law to place broad restrictions on immigration from a specific location.
The Chinese Exclusion Act was not repealed until the World War II era.
Step-by-step explanation:
This question is complete there are different options.
In 1882 was approved the Chinese Exclusion, was the first United States law restrictions on immigration from a specific country, was made by President Chester A. Arthur, there was a big immigration in California, in 1840 was discovered gold in that state, there were needs of workers in the mines, workers with low salary and very difficult and dangerous jobs like the railroad lines.
There were more than 100 thousands Chinese workers in the United States, white people thought that Chinese workers were not fairs because they worked for lower salaries.
There were economic recessions help to sign the Chinese Exclusion Act. The act was repealed until the World War II in 1943.