Based on PPP and the quantity theory of money, everything else remaining unchanged, if Japan’s real income rises relative to real income in the U.S., there would be a(n):

Based on PPP and the quantity theory of money, everything else remaining unchanged, if Japan’s real income rises relative to real income in the U.S., there would be a(n):
A.appreciation of the dollar.
B.appreciation of the yen.
C.interest rate parity.
D.decrease in the demand for yen in the foreign exchange market.
正确答案：appreciation of the yen.