题目内容：
If a U.S.firm desires to avoid the risk from exchange rate fluctuations, and it will need C$200,000 in 90 days to make payment on imports from Canada, it could:
A.obtain a 90-day forward purchase contract on Canadian dollars.
B.obtain a 90-day forward sale contract on Canadian dollars.
C.purchase Canadian dollars 90 days from now at the spot rate.
D.sell Canadian dollars 90 days from now at the spot rate.
参考答案：