How did immigration to the United States change in the 1800s?

The immigrants diversified the ethnic mix of the United States. The majority in the 1870s and 1880s still came from Ireland, England and Germany, as was the case before the Civil War, but these were joined by increasing numbers of Scandinavians and eastern and southern Europeans, as well as Asians.

Explanation:

the answer should be monarchy

i do believe its (d) it allowed the government to offer pioneers sixty acres of western land if they lived on it and made improvements to it.

explanation: signed into law in may 1862, the homestead act opened up settlement in the western united states, allowing any american, including freed slaves, to put in a claim for up to 160 free acres of federal land. by the end of the civil war, 15,000 homestead claims had been established, and more followed in the postwar years