When the Phillips Curve Was Viewed as a Structural Relationship,it

Multiple Choice

When the Phillips curve was viewed as a structural relationship,it was believed that the central bank could

A) permanently reduce the unemployment rate if it were willing to accept an increase in the inflation rate.
B) permanently reduce the inflation rate as it permanently reduced the unemployment rate.
C) permanently reduce the unemployment rate if it were willing to increase the real interest rate.
D) permanently reduce the inflation rate if it were willing to decrease the real interest rate.