The correct answer is C) Workingmen's Party; Chinese Exclusion Act
The Workingmen's Party showed prejudice against Chinese immigrants because they feared competition for jobs. As a result, people on the West Coast persuaded Congress to pass the Chinese Exclusion Act, a law that ended most Chinese immigration to the United States.
Nativism in the United States had a big impact on immigration. White people were angry because they said immigrants such as the Chinese took jobs that belonged to them. The political pressure on the US government was strong that President Chester A. Arthur signed the Chinese Exclusion Act on May 6, 1882. This act prohibited the immigration of Chinese workers to the US.