In the scenario you provided, characterized by high inflationary pressure, low unemployment, and steady GDP growth, the appropriate course of action would be to consider measures that can help control inflation rather than exacerbate it.
The possible suitable action would be:
The Federal Reserve should use monetary policy and raise the reserve requirement, decreasing the money supply.
This action would help to reduce the money supply, which can help to decrease inflationary pressures.
The other options, such as lowering taxes to encourage spending or buying government bonds, would typically increase the money supply and could further fuel inflation, which is contrary to the goal of managing high inflation.
Therefore, among the options you provided, the correct choice is the one that involves raising the reserve requirement.