In Latin American Studies, What Is Meant by "Dependency" Theory

In Latin American studies, what is meant by "dependency" theory?

A) Political rule in Latin America in the nineteenth century was dependent on being a caudillo, or a "leader," who acquires power based on possession of large amounts of land.
B) The global marketplace is an unfair trading ground for most less-developed countries.
C) The system of caudillismo, one of political power, was dependent on another system, the latifundia, which was based on land ownership.
D) The more dependents that a family has, the better its economic well being.