giladedelman Wrote:You're absolutely right that (C) is correct because it's an example of one of the cultural "qualities that immigrant groups bring with them for competition in the United States labor market."
(A) is incorrect because the passage simply doesn't give us any way to evaluate whether this is an example of a supply-side or demand-side element; concentration of businesses is not discussed.
(B) is incorrect because it's a demand-side element.
(D) is also demand-side.
(E) is, I guess, demand-side as well.
Does that answer your question?