In the modern era, the majority of immigrants come from which area?

The correct answer is D. Latin America.

In the modern era, a significant number of immigrants to various countries, especially the United States, come from Latin America. Factors such as economic opportunities, family reunification, and political instability in their home countries have contributed to this trend. While there are also important immigrant populations from Africa/Mideast and other regions, Latin America remains the largest source of immigrants in many parts of the world today.