How do mediums of exchange affect trade? A. They make trade less global.
B. They make trade less profitable.
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C. They make trade more expensive.
D. They make trade more efficient.

A. They make trade less global

Explanation:

I Hope It's Right

"a government in which power is divided between state and national levels". federalism is a system of government in which entities such and state and province, share power with the national government.

- a government ruled by the people, or assembly. officials monarchy - a single ruler like a king. over time some city-states, like athens would change governments. what this means is that all the citizens voted on all the laws.