Representative: acting or speaking for others democracy: government ruled by the people

According to those definitions, which sentence describes a government that uses representative
democracy like the United States?

A. A king appoints, or chooses, a group of
advisors to govern for him.

B. All of the people in a country debate and
vote on every political issue.

C. The citizens of a country elect people to
make laws for them.

D. An unelected emperor makes all decisions
for the government.