The currency of the United States primarily comprises:
- Paper money - This includes Federal Reserve notes (dollars).
- Metal coins - These are the physical coins produced by the U.S. Mint.
Checkable deposits are not considered currency in a strict sense, but they are part of the broad money supply and play a significant role in the overall money system. Small time deposits are also not classified as currency.
So, the correct selections for the currency of the United States would be:
- Paper money
- Metal coins