Which of the following groups was most likely to face interrogation at immigration stations during the 1800s

The group that was most likely to face interrogation at immigration stations during the 1800s are the Chinese immigrants. The primary flood of Chinese settlers touched base in the United States in the late 1840s, and stayed all through the 1850s for the California Gold Rush. The main Chinese ship to touch base in San Francisco came in 1848, yet starting movement was moderate.