If We Look at Real and Nominal Interest Rates in Australia

If we look at real and nominal interest rates in Australia since 1971, we see that

A) the difference between the nominal and real interest rates widened during the 1990s because of inflation.
B) both the nominal and real interest rates were negative in the highly inflationary 1970s.
C) the nominal interest rate has always been less than the real interest rate because of inflation.
D) at times the nominal interest rate has been greater than the real interest rate and at times has been less than it.
E) the real interest rate has almost always been less than the nominal interest rate because of inflation.