How Do Economic Structuralists Compare with Realists

How do economic structuralists compare with realists?

A) Realists are concerned with politics among the "great powers," whereas economic structuralists are concerned with the relations between the strong and the weak.
B) Realists and economic structuralists both agree with the statement that "the strong do what they can and the weak suffer what they must."
C) Realists accept the exploitation of the weak as a fact of life, but economic structuralists believe that fact is unacceptable and must be changed.
D) All of the above is correct.