Read the excerpt from Immigrant Kids, and then answer the question. But the journey was not yet over. Before they could be admitted to the United States, immigrants had to pass through Ellis Island, which became the nation's chief immigrant processing center in 1892. There they would be questioned and examined. Those who could not pass all the exams would be detained; some would be sent back to Europe. And so their arrival in America was filled with great anxiety. Among the immigrants, Ellis Island was known as "Heartbreak Island."

What best paraphrases the central idea of the excerpt?

A. Ellis Island was known as “Heartbreak Island” because so many had heart and medical problems while there.
B. Ellis Island was an important step on the way to American citizenship. Not everyone made it through the examinations.
C. In 1892, Ellis Island became the nation’s immigrant processing center. Lots of questions and exams were given there.
D. Immigrants who couldn’t pass examinations felt a lot of anxiety and were sent to live on Ellis Island

B. Ellis Island was an important step on the way to American citizenship. Not everyone made it through the examinations.

Explanation:

The option that best paraphrases the central idea of the given excerpt is option B.

The excerpt tells us about how immigrants had to pass through Ellis Island before being admitted to the United States. There, they had to pass exams in order to be accepted. Otherwise, they would be detained or sent back to Europe. The possibility of this happening made many immigrants anxious. Option B paraphrases this information best.

Option A is incorrect because Ellis Island isn't called Heartbreak Island because of medical issues people had there.

Option C states what Ellis Island was. It mentions the exams, but not their results, which is important.

Option D doesn't tell us what Ellis Island is, and immigrants who didn't pass examinations weren't sent to live there.

elon musk, ceo of spacex, a startup space company is planning to head to mars by 2023. nasa is planning to go to mars at around 2025. both are just for a basic colony.