Answer :
The first wave of European immigrants to arrive to the United States in the nineteenth century came from D. northwestern Europe--mainly Dutch, German, Irish, etc.
The correct option is D
The United States has been the majority destination of European immigrants. Thus, between 1815 and 1860, five million people from Europe arrived in that country, and between 1860 and 1920, another 27 million entered. Between 1840 and 1920, 6 million Germans, 4.75 million Irish, 4.5 million Italians, 4.2 million English, Welsh and Scottish emigrants, 4.2 million from the Austro-Hungarian Empire, 2.3 million from Scandinavia and 2.3 million from the Russian Empire