Between the 1820s and 1850s, the largest population of immigrants to the
United States originated from what country?
(A) Russia
(B) France
(C) Poland
(D) Italy
(E) Ireland

Respuesta :

Between the 1820s and 1850s, the largest population of immigrants to the
United States originated from "Ireland," since this led to a major backlash against Catholics by many "Nativists". 
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