which of the following is a true statement about systems of government in the world today?

As an AI language model, I do not have access to the most current updates so I can only provide a general answer. However, it is true that there are many different systems of government in the world today, including but not limited to democracies, monarchies, dictatorships, oligarchies, and theocracies. Some countries may have a combination of different systems or have unique variations on existing systems.