Under the gold standard of currency exchange that existed from 1879 to 1914 , an ounce of gold cost $20.67 in U.5. dollars and E.2474 in Batish pounds. Therefore, the exchange rate of pounds per dollar under this fixed exchange regime was: A. always changing because the price of gold was always changing. B. 24.8665/3. C. unknown because there is not enough information to answer this question. D. 20.2055/5