31. Other things the same, if foreign residents desired to purchase more U.S. wheat
(A) the real exchange rate and net exports of U.S. would rise.
(B) the real exchange rate of U.S. would rise and net exports of U.S. would be unchanged.
(C) the real exchange rate of U.S. would fall and net exports of U.S. would be unchanged.
(D) the real exchange rate of U.S. would fall and net exports of U.S. would rise.

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