Question

what was passed by congress to limit the amount of immigrants coming in each year?
○ a. chinese immigration act
○ b. act of 1919
○ c. quota system
○ d. none of the above.

Explanation:

The Chinese Immigration Act was more targeted at Chinese immigrants rather than a general limit on annual immigration. There is no widely - known "Act of 1919" specifically for limiting annual immigration in the context of US immigration history. The quota system (such as the Immigration Act of 1924 which had a quota - based approach) was used to limit the number of immigrants coming in each year.

Answer:

C. Quota System