Which conclusion can you make about one of the primary functions of Ellis Island?

One of the primary functions of Ellis Island was to serve as the main entry point for millions of immigrants arriving in the United States from the late 19th century to the mid-20th century. It functioned as an Immigration processing center where newcomers underwent health inspections and legal evaluations to determine their eligibility to enter the country. This process played a crucial role in shaping America's diverse population and contributed to the nation's identity as a land of opportunity for immigrants seeking a better life.