【单选题】Before 1971 if U.S. purchased more goods and services than it sold goods and services to the rest of the world. The U.S. would generate a BOP __________.
A.
deficit with no change in exchange rate
B.
deficit with the dollar devaluation in the foreign exchange market
C.
surplus with no change in exchange rate
D.
surplus with the dollar revaluation in the foreign exchange market