The correct answer is D) Many immigrants, particularly those from Europe, saw the United States as a land of increased economic opportunities.
The statement that was a significant reason for the mass migration of immigrants to America in 1840 was that many immigrants, particularly those from Europe, saw the United States as a land of increased economic opportunities.
European people were living difficult lives in the 1840s for many reasons. One of them was the poor economy in his countries. In those years, wages in the United States were four or five times higher in the US than in Europe. So many people decided to emigrate to America and start a new life, looking for better job opportunities and good living conditions for their families. People from Ireland, Germany, Scottland, Denmark, Wales, Norway, and Sweden came to the United States.