Which of these is an example of a state power being exercised? a. imposing tariffs on chinese products b. changing the design of a twenty-dollar bill c. deciding what type of ballot to use for voting d. establishing the universal weight of a pound for commerce

north atlantic treaty organization.

a social contract.

"a social contract is an agreement between citizens and their leader where the citizens give up certain freedoms in exchange for protection. the constitution of the united states is an example of a social contract."