Read the details from "The Workers of Ellis Island" and think about the central idea they support. Because he was only allowed to admit persons who were "clearly and beyond a doubt entitled to enter the United States," he had to be absolutely certain the person he was examining was not a member of one of the classes of persons barred from entering the country . . . . Ellis Island doctors were particularly watching for signs of contagious diseases. Incurable diseases included trachoma and tuberculosis and guaranteed a return trip to where the immigrant came from. Which supporting detail also supports the same central idea?

The detail that supports the central idea of the text is: All foreigners who arrived at the port of New York underwent an investigation before being able to enter the city.

Explanation:

The text above shows how the entry into New York City was controlled and judicious. This is because there was a group of people who were not welcome in the city and for security reasons these people were not allowed to enter, since New York received a large number of foreigners who were looking for better living conditions. Sick people, or showing signs of contagious disease were not allowed. For this reason, before allowing foreigners to enter, it was necessary for everyone to go through an investigation process that proved that they had no diseases, nor that they would cause disorder, so that they could enter the city.

where is the article\

conversing outside - a.