【单选题】Prudence is careful to plan ahead. She is going to Paris next year to study. To protect herself from exchange rate uctuations, she bought a futures contract for the number of francs she plans to spend...
A.
she will be at least as well off an probably better off than if the exchange rate hadn't changed.
B.
she will be worse off than if exchange rates hadn't changed.
C.
she will be exactly as well off as if exchange rates hadn't changed
D.
she might be better off or she might be worse off, depending on whether she planned to spend more or less than she does at home.