Answer:
2.An expert describes the health exams performed on Ellis Island. "One doctor looked for physical and mental abnormalities. When a case aroused suspicion, the immigrant received a chalk mark . .
Step-by-step explanation:
If you don't have a case that aroused suspicion, you are allowed on the deck but if not you are given a mark L for lameness, H for heart, X for mental defects, and so on.
It is for the safety of others and themselves