Under the Gold Standard

Under the gold standard,

A) countries specified a fixed price at which they were willing to trade their currency for an ounce of gold.
B) countries adopted a flexible price at which they were willing to trade their currency for an ounce of gold.
C) all countries traded gold at the market price and traded their currency at that price.
D) countries allowed their currency to float against the price of gold.
E) all countries fixed their currency at the same rate.