The Gold Standard Is a Monetary System in Which

The gold standard is a monetary system in which:

A) the exchange rate of major currencies retained nearly the same value with respect to the U.S.dollar.
B) the exchange rate of the U.S.dollar was periodically adjusted in response to currency crises in its allies' economies.
C) exchange rates were allowed to change according to their market price.
D) the exchange rates of the major currencies remained fixed to gold.
E) governments used gold instead of paper currencies.