Governments are important because they
A
control every aspect of the population
LO
eliminate the need for participation in national decisions
enforce rules that control conduct within a population
NEMA

Governments are important because they: enforce rules that control conduct within a population.

Explanation:

A government is a group of people with authority to rule the people in the state, nation and community. Government is responsible for making laws and enforcing them. The laws are made to control the people within the population.

Government involve in making tax scheme and collecting tax from the citizen of the nation. They are also responsible for printing money. The federal, state and local governments are funded through the tax paid by the common public.

I am pretty sure that it is C.

I just studied this and looking at the other answers they don't seem to make sense. I could be wrong. History isn't my strong suit...

Hope this helped :)