An ancient copper coin found in the east african port of kilwa is the same kind of coin that was used during the middle ages in great zimbabwe, 1500 miles away along the limpopo river. what does this discovery reveal about trade in africa during that time?

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explanation:

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the correct answer is d. the monetary reserve is a set of funds represented in currency, money or similar, saved as a forecast of possible needs or for legal reasons.

the increase or decrease in the monetary base influences in the increase or decrease of the inflation rate. therefore, the excess of monetary reserve will cause the reduction of inflation.

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