Using the definition of the (ex-post) real interest rate, what is the correct form for the PRF when it is written in terms of the nominal interest rate i?

The following is a simple monetary policy reaction function (PRF) for the real policy rate r. r : 0.02 + 0.5 11 Using the definition of the (ex-post] real interest rate, what is the correct form for the PRF when it is written in terms of the nominal interest rate i? i: 0.02 + 0.511 i: 0.02+1.5rt i: 0.02 - 0.511 i= 0.02+1.0rt i= 0.02+1.0r