According to the Taylor rule, the Fed should set the target for the federal funds rate equal to the sum of the equilibrium real federal funds rate, the current inflation rate, one$-$half times the $\_\_\_\_\_\_\_\_,$ and one$-$half times the $\_\_\_\_\_\_\_\_.$

interest rate gap; inflation gap

interest rate gap; output gap

inflation gap; output gap

unemployment gap; government$-$spending gap