Why did the large numbers of “New Immigrants” coming to live in the United States in the late 1800s alarm Americans more than the arrival of “Old Europeans” had in previous decades?

America becomes a refugee and more famous in the 18's especially for many Europeans who seek for new home in the new world called the Americas. In that time many problems like crisis brought by wars make living hard so they escape and migrate in the New World.

The America's welcome them and help them to create home in the Estados Unidos.

answer; ///i believe that the correct answer is (c)vetoing executive check first good luck

i believe 5 is correct answer