I was able to get Sb - 0.29 but was not able to prove what is the inflation rate that maximizes seigniorage. Any thoughts?

TrueIFalse and Explain. Evaluate whether the following statement is true or false and explain why. Seigniorage. Consider an economy at steady state for which money holdings are m = 5, inflation is II = 0.03 and the real interest rate is l" = 0.02. For this economy the amount of seigniorage equals 5 b = D .2 9. Moreover, at that level of inflation, seigniorage is maximised