![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-53/ti_inject-812ce.png)
The monetary base is the sum of
A.
Federal Reserve currency in circulation and Treasury currency in circulation.
B.
vault cash, deposits at the Fed, and Federal Reserve currency in circulation.
C.
the Fed’s monetary liabilities and the U.S. Treasury’s monetary liabilities.