Question

in 1882, the chinese exclusion act
limited chinese immigration to 5,000 people per year.
was strongly opposed by nativist groups.
was debated in congress but did not pass.
halted chinese immigration for a period.

Explanation:

The Chinese Exclusion Act of 1882 was the first significant law restricting immigration in the United States. It was not about limiting to 5,000 per year. Nativist groups supported it as they were anti - Chinese. It did pass in Congress. It halted Chinese immigration for a period (initially 10 years, later extended and made more permanent in some forms).

Answer:

halted Chinese immigration for a period.