What major change occurred in U.S. immigration patterns after 1930?

The correct answer reflects a significant shift in U.S. immigration patterns post-1930, particularly in terms of the demographics and regions contributing to immigration. After 1930, there was a notable transition from a predominantly European influx to more diverse origins, including increased immigration from Asia and Latin America. This period saw a growing number of immigrants coming from countries in these regions rather than the established European ones, largely due to changes in immigration laws and global events that affected migration flow.

The new immigration wave was influenced by various factors, such as economic opportunities in the U.S., political unrest in sending countries, and family reunification trends. This change marked a diversification in the immigrant population, fundamentally shaping the cultural and social landscape of the United States.

While immigration from Canada and Mexico did continue and is significant in its own right, it is not the sole or defining characteristic of post-1930 immigration trends. The statement about immigrants originating solely from Latin America oversimplifies the diverse sources of immigration during this time. Similarly, while the presence of Asian and African immigrants increased, they did not dominate the immigration landscape as implied. Therefore, the correct answer acknowledges the broader, more varied origins of immigrants that emerged after 1930.