Given a System of Floating Exchange Rates, Assume That Boeing

Given a system of floating exchange rates, assume that Boeing Inc.of the United States places a large order, payable in yen, with a Japanese contractor for jet engine parts.The immediate effect of this transaction will be a shift in the

A) supply curve of yen to the left, which causes the dollar to appreciate against the yen.
B) supply curve of yen to the right, which causes the dollar to depreciate against the yen.
C) demand curve for yen to the left, which causes the dollar to appreciate against the yen.
D) demand curve for yen to the right, which causes the dollar to depreciate against the yen.