According to Bobby Peek, targeting the companies would be difficult as it would be near-impossible to prove that illnesses suffered were caused by ______.
【单选题】Under the Bretton Woods system, ______________.
A.
Each country established a par value for its currency in relation to the dollar.
B.
The U.S. dollar was pegged to gold at $35 per ounce.
C.
each country was responsible for maintaining its exchange rate within 1 percent of the adopted par value by buying or selling foreign exchanges as necessary