Answer:
b)imperialism
Step-by-step explanation:
Imperialism is a practice used by large nations to colonize smaller or weaker countries in order to exploit the natural resources, this happened when the colonization came to America by the Europeans or now with different large countries exercising their economical and political influence over smaller weaker countries in order to get economic advantages, like what China is doing by lending huge amounts of money to underdeveloped countries in order to take advantage of the influence that they can have over them after those loans.