What are republics? direct democracies a hallmark of direct democracy representative democracies communist regimes?

The correct answer is representative democracies

In a republic, supreme power is held by the people who exercise it through their elected representatives. The elected individuals represent the citizen body and government leaders exercise power in accordance to the law  

Answer;

-Representative democracies

The republics are representative democracies.

Explanation;

-Representative democracy (also indirect democracy, representative republic, representative government or psephocracy) is a type of democracy founded on the principle of elected officials representing a group of people, as opposed to direct democracy.

-It is a system of government in which the people control the government through elected political officials. The elected representatives represent the people as opposed to the direct democracy which is a system where people make public policy decisions directly through referendums or initiatives.