Answer:
d. differences in culture and language.
Explanation:
Among 1870 and 1900, the biggest number of immigrants continued arriving from northern and western Europe including Great Britain, Ireland, and Scandinavia.
However, new workers from southern and eastern Europe became one of the most influential powers in American life. Many needed to conquer language hindrances. Others found that the obstacles they had left from, for example, poverty or religious oppression, were to be faced in America too.
