Sam Dearing,Budding International Financier

Sam Dearing,Budding International Financier
Sam Dearing is a summer intern in the arbitrage department at a prestigious Wall Street firm.Sam is hoping to be offered a full-time position at the firm after he graduates from college,and therefore,Sam knows that he must demonstrate a strong understanding of how exchange rates work.
-Sam has been studying the price of wheat across markets.If a kilogram of wheat costs €1.5 in France and $1 in the United States,the law of one price would tell us ________.

A) the expected exchange rate between the euro and the dollar is €1.5/$
B) wheat is over priced in France
C) wheat is under priced in France
D) an arbitrage opportunity exists in the international wheat market