40.38 Suppose the spot rate ends the year exactly where it began at SS = S,Ws = 100/$. Inflation in Japan was 2 percent during the year. Inflation in the United States was 3 percent. What is the percentage change in the real exchange rate xW/S? a. 0.98 percent real appreciation of the dollar against yen b. 0.88 percent real appreciation of the dollar against yen c. 0.78 percent real appreciation of the dollar against yen d. 0.68 percent real appreciation of the dollar against yen