The United States is a high-income country; therefore, we would expect population increase to result from which of the following?

a. both immigration and natural increase

b. natural increase only

c. immigration only

d. emigration only

I think the correct answer from the choices listed above is option C. The United States is a high-income country; therefore, we would expect population increase to result from immigration only. It is the international movement of people into a destination country of which they are not natives or where they do not possess citizenship. Hope this answers the question.