Which of the Following Statements Accurately Reflects One Aspect of the Principle

Which of the following statements accurately reflects one aspect of the principle of reciprocity?

A) Based on give-and-take, it helped maintain equilibrium and interdependence between individuals of unequal power and prestige.
B) None of these choices
C) All of these choices
D) To retain control, human beings had to change nature to suit their purposes.
E) All people of an area had to vote before decisions could be made or treaties signed.