With the Bretton Woods System of International Exchange Rates

With the Bretton Woods system of international exchange rates,

A) the value of a country's currency was determined strictly by the laws of supply and demand.
B) the value of a country's currency was determined by its stock of gold.
C) there were fixed exchange rates,and countries were obligated to intervene to maintain the values of their currencies within 1 percent of par value.
D) balance of payments were eliminated.