The correct option is A Promotes equality among citizens.
Democracy is the best form of government, as it is the "rule of people". In this form of the government, the citizens have the right to take part in the decision making of the nation. In the words of Abraham Lincoln, democracy is the government of the people, by the people, and for the people. It is the government where the citizens elect their representatives to make decisions on their behalf. Democracy also promotes equality among citizens. Each citizen has one vote to elect their representatives and also they have equal rights to freedom of speech and expression. That is why democracy is the best form of government.