Monetary Policy in Southland

Multiple Choice

Monetary Policy in Southland
In Southland the Department of Finance is responsible for monetary policy. Southland has had an inflation rate of 25% for many years.
-Refer to Monetary Policy in Southland. Suppose that the Southland Department of Finance undertakes a public relations campaign to convince people that it will soon change monetary policy to reduce inflation to 12.5%. If Southlanders believe their government then which, if any, curve(s) shift left?

A) the short-run and the long-run Phillips curve
B) the short-run but not the long run Phillips curve
C) the long-run but not the short-run Phillips curve
D) neither the short-run nor the long-run Phillips curve