If the central bank raises the inflation target by 3%, we would expect that:
A. the real interest rate will decrease by less than 3% in the medium run
B. the real interest rate will not change in the medium run
C. the real interest rate will decrease by exactly 3% in the medium run
D. the real interest rate will increase by less than 3% in the medium run
E. the real interest rate will increase by exactly 3% in the medium run