In international trade, an exchange rate is . A. a way to record a nation’s imports and exports B. an agreement between nations to reduce trade barriers C. a chart for keeping track of prices on a stock exchange D. a number that is used to show the value of one currency compared to another In international trade, an exchange rate is . A. a way to record a nation’s imports and exports B. an agreement between nations to reduce trade barriers C. a chart for keeping track of prices on a stock exchange D. a number that is used to show the value of one currency compared to another