According to the Fisher Effect, which of the following statements are correct（）.

A.When the nominal interest rate is higher than the expected inflation rate, the real interest rate is positive.

B.When the nominal interest rate is lower than the expected inflation rate, the real interest rate is negative.

C.When the nominal interest rate is equal to the expected inflation rate, the real interest rate is zero.

D.When the nominal interest rate is lower than the expected inflation rate, the real interest rate is positive.

E.When the nominal interest rate is equal to the expected inflation rate, the real interest rate is positive.

E.When the nominal interest rate is higher than the expected inflation rate, the real interest rate is negative.

正确答案：When the nominal interest rate is higher than the expected inflation rate, the real interest rate is positive.；When the nominal interest rate is lower than the expected inflation rate, the real interest rate is negative.；When the nominal interest rate is equal to the expected inflation rate, the real interest rate is zero.