In which system of government are leaders most accountable to citizens?

Representative Democracy system of government are leaders most accountable to citizens.

Thus option D is  the correct answer.

Learn more about Representative Democracy  here:

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Representative Democracy

Explanation:

Government accountability is more common in democratic countries. Among the choices presented, it is only "Representative Democracy" that is under a Democratic government.

Representative Democracy is a type of democracy where people indirectly vote for their higher officials in the country. Their voted representatives elect the higher officials (just like the President) for them.

Under such type of government, the leaders have to be most accountable or responsible for the citizens; thus, it is important for them to be transparent. So, this also includes a credible plan for budget and other policies. This also means that people can complain against the leaders who mistreats them and this will be duly investigated.

wait history, who want to talk about history, boring.