I think that the correct answer is B. BY ASSISTING
Ethnic niche communities in major cities help new immigrants by fighting for their legal rights.
Ethnic niche is defined as the term used to identify group of people with the same ethnicity that are dominant in an occupation or an industry. Their dominion or great numbers help them overcome negative consequences of discrimination. This is a clear example of power in numbers.
New immigrants will know what their legal rights are and how to exercise these rights by being part of the ethnic niche. Their chances of being singled out for harassment and discrimination is severely diminished.
Well the niche form of ethnic communities has been taken as the important cities that are helping out the immigrants in terms of fighting for their own legal set of rights. This niche is defined as the form of highlighting the people who are having the same ethnicity.
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be the "Ancient Greeks," since they were the leaders of trade in the Mediterranean Sea. </span></span>