Mangos were widely accepted for purposes of exchange: mangos would be money.
Option A is correct.
The term “ exchange ” has several delineations. At a introductory position, it refers to the act of giving commodity in order to admit another thing of original value, similar as swapping cash for goods. In financial terms, it can relate to trading one currency for its original value in another currency.
Indeed though utmost people buy everything in bones , the exchange rate is important because it determines the price of the imported goods they buy that's relative to domestic goods.
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