Beginning in 1910, the US officials began operating out of Angel Island with the primary goal of (1 point) Responses ensuring affluent European immigrants were admitted entry to the United States ensuring affluent European immigrants were admitted entry to the United States controlling the influx of Chinese immigrants to the United States controlling the influx of Chinese immigrants to the United States maintaining national security by defending the eastern coastline from attack maintaining national security by defending the eastern coastline from attack facilitating trade between the American West and the Northeast facilitating trade between the American West and the Northeast

controlling the influx of Chinese immigrants to the United States

The correct answer is: controlling the influx of Chinese immigrants to the United States.

To determine the correct answer, we can break down the options and analyze the information provided.

1. Ensuring affluent European immigrants were admitted entry to the United States: This answer does not align with the statement regarding Angel Island and the primary goal. Angel Island was predominantly focused on processing and detaining immigrants from Asia, not specifically affluent European immigrants.

2. Controlling the influx of Chinese immigrants to the United States: This answer is consistent with the information provided. Angel Island was primarily used to process and detain Chinese immigrants, particularly during the period from 1910 to 1940.

3. Maintaining national security by defending the eastern coastline from attack: This answer does not align with Angel Island's purpose. Angel Island is located in San Francisco Bay, not on the eastern coastline. Its main role was immigration control rather than national defense.

4. Facilitating trade between the American West and the Northeast: This answer does not align with the information provided regarding Angel Island. Its primary purpose was related to immigration control rather than trade facilitation.

Based on the information given, the correct answer is:
Controlling the influx of Chinese immigrants to the United States.