Immigrants in cities usually live in ethnic enclaves.
Explanation:
Ethnic enclaves were mainly created by the immigrants for a purpose, they mainly tried to preserve the cultural identities. The neighborhoods that was mainly created by the immigrants provided huge support to their language, specially the new people who wanted to speak the native language or the people who were learning English still.
Mainly the chain migration helped in creation of ethnic enclaves, so that people of that culture can migrate to that spot where other people are staying.
There is a cost of attending a college. The money and time that you spend on your education is an opportunity cost. You could the same amount of money and time for something else. What else could you do? What kind of lifestyle could you choose? What carrier would you have? All of these questions bear the concept of opportunity cost in this context.
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I think it would be communication. As said before, they contacted one family about the schools. To get even more information contacting others would be even better.
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