What were reasons to go to a new country during immigration 1880-1920

The United States experienced major waves of immigration during the colonial era, the first part of the 19th century, and from the 1880s to 1920. Many immigrants came to America seeking greater economic opportunity, while some, such as the Pilgrims in the early 1600s, arrived in search of religious freedom.

the answer is a. since they were a huge producer of cotton and wanted the most money for it.