Which act could be considered an acceptance of the social contract?

paying the electric bill in exchange for using electricity
viewing commercials in exchange for watching network news broadcasts
observing traffic laws in exchange for driving on the highway
paying the water bill in exchange for taking a shower

All of the mentioned acts could be considered acceptance of the social contract as they involve an individual fulfilling certain obligations or responsibilities in exchange for the benefits or privileges provided by society.

Observing traffic laws in exchange for driving on the highway could be considered an acceptance of the social contract.