The correct answer is:
The US Congress passed an exclusion act in 1882 barring Chinese immigrants because Chinese immigrants would work for low wages, which labor leaders felt took jobs away from US citizens.
1. Chinese immigrants were willing to work for lower wages compared to US citizens, making them attractive to employers.
2. Labor leaders were concerned that this competition for jobs would negatively impact American workers by driving down wages and job opportunities.
3. As a result, the US Congress enacted the Chinese Exclusion Act in 1882 to restrict Chinese immigration and protect the interests of American workers.