Katerina and Josef Immigrated to the United States from Poland

Katerina and Josef immigrated to the United States from Poland, settling in western Pennsylvania. Katerina opened a bakery out of their home and Josef worked in the coal mines. Every few months, Katerina would send money to her younger brother, Ernst, who still lived in Poland. As Katerina and Josef's children were born and became old enough to work, they entered the coal mines and worked in the local grocery store, continuing to send money back to Uncle Ernst until he had saved enough to immigrate to the United States, as well. The money that Katerina, Josef, and their children sent to Ernst is termed

A) remittances
B) money orders
C) visas
D) green cards