For a Country to Be on a "Gold Standard," It

Multiple Choice

For a country to be on a "gold standard," it must

A) use gold coins as money.
B) use gold coins as money and promise never to debase its coins.
C) use gold as money,but not necessarily in the form of gold coins.
D) make its currency convertible into gold at a fixed rate of exchange.
E) use gold as fiat money.