Job Recruitment Website - Immigration policy - Most of the earliest _ _ _ _ _ were camels brought to America from Europe. The options are immigration and emigration. Which one is it, please?

Most of the earliest _ _ _ _ _ were camels brought to America from Europe. The options are immigration and emigration. Which one is it, please?

Immigration and emigration are directional words, the former is immigration and the latter is emigration. According to into America and from Europe in the sentence, they are moving to the United States, so the word immigration is used to mean immigration.