Answer:
Jallianwala Bagh massacre
Explanation:
I think it’s B I’m not so sure
<span>On August 5, 1963, representatives of the United States, Soviet Union and Great Britain signed the Limited Nuclear Test Ban Treaty, which prohibited the testing of nuclear weapons in outer space, underwater or in the atmosphere. The treaty, which President John F. Kennedy signed less than three months before his assassination, was hailed as an important first step toward the control of nuclear weapons.</span>
1: they feared that they would get deported by the imgration officer.
2: they also feared that there family member(s) would get sent back
3: lots of people had different types of diseases and they thought they would catch them and get sick.
4: had fear of getting lost.
5: most of them didn't have family there so they were worried that they would have to live on streets or that they might jot get a job.
hope these were enough reasons. there r more reasons but these were the only ones i knew of so yea.