The answer you are looking for is option B
I personally think the answer is a
I think it’s A I’m not sure for a fact tho but I’m 70% sure it’s A
Between 1870 and 1900, the largest number of immigrants continued to come from northern and western Europe including Great Britain, Ireland, and Scandinavia. But "new" immigrants from southern and eastern Europe were becoming one of the most important forces in American life. More controversial, and much more limited, was immigration from Asia and Latin America.