Answer:
1. A: ethnic group
- An ethnic group fits the definition exactly. Immigrant refers to an individual, not a group; multicultural is the opposite of the question; populations include many cultures, so that doesn't work either.
2. B: While a person must adapt to a new place, his culture also changes the culture of the place.
- The difference between the salad bowl and the melting pot. Cultures in America especially are tricky: do they assimilate with the American culture, or remain separate? Ultimately, there's always a bit of a mixture. A is wrong because the culture the immigrant left doesn't change; B is wrong because the cause is not the culture changing, it's a person leaving their home culture.
3. B. entrepreneur
- Louisa is an entrepreneur because she opened her own business. Tourists are visitors, not business owners; multicultural doesn't make sense, because we don't know what culture she comes from; she's not given to be a politician.