Which statement about immigration to the u. s in the late 20th century is true?

(a) Immigration laws favored immigration from Northern and Western Europe over immigration from other regions.

(b) Congress steadily reduced restrictions on immigration beginning in the 1890s until immigration was unrestricted by the 1930s.

(c) Quotas restricted immigration from Latin America and Asia at the same time that they expanded immigration from Europe and Africa.

(d) At the same time that immigration was being restricted, Congress made it easier for newly-arrived immigrants to become U.S. citizens.

Explanation:

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