The monetary supply in the United States is based on fiat money which means that it is not true that A) America's fiat money is currently backed by gold deposits at the Federal Reserve.
The American dollar is a fiat currency which means that it is not backed by any sort of mineral deposits be it gold or silver. The gold deposits at the federal reserves are therefore not used to back the dollar.
The dollar is instead backed by the U.S. government and its policies which aim to keep the American economy stable.
The other options are wrong because:
In conclusion, the U.S. Dollar is not backed by the gold deposits in the Federal reserve but rather by the American government itself.
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