The correct answer is B) governments.
Managing the activities of people in a civilization is the function of governments.
A government is a formal institution that rules a country. There are many forms of governments: democratic, authoritarian, monarchies, and oligarchies. For instance, the United States government is a democracy, where its citizens can vote to elect their representatives. The US has a Constitution that is the supreme law of the nation and everybody have to respect it, including the President.