The Fundamental Weakness of Colonialism Was That It

The fundamental weakness of colonialism was that it

A) required a substantial economic investment in the infrastructure by the colonizer.
B) relied on theories of Social Darwinism.
C) is ultimately based on the self-interests of the colonial powers.
D) assumed a welcome system of reciprocity with the subject nation.
E) could not establish a uniform system of administration between direct or indirect rule.