From the discussions of demographic changes within the United States we can deduce that the largest level of interregional migration in the United States was caused by the
A) arrival of Europeans and their wars with Native Americans beginning in the 1600s.
B) unauthorized immigration from Latin America, especially in the 1900s.
C) immigration of Asians beginning in the early twentieth century, despite the Chinese Exclusion Acts.
D) opening up of the western territories to settlement.
E) industrial development in the northeast, particularly at the outset of the Industrial Revolution.

Question

Quizplus · Accepted Answer

The opening up of the western territories to settlement caused the largest level of interregional migration in the United States. This is evidenced by the mass migration of settlers moving westward during the 1800s and early 1900s in search of land, opportunities, and wealth. This demographic change is also known as the Westward Expansion.

From the Discussions of Demographic Changes Within the United States