The Difference Between Nominal and Real Is

The difference between nominal and real is

A) nominal is measured in current dollars and real is measured in dollars of a given year.
B) real is measured in current dollars and nominal is measured in dollars of a given year.
C) both nominal and real are measured with index numbers, only the nominal index is greater than 100 and the real index is less than 100.
D) nominal is a number stated in dollars and real is stated with an index number.
E) real is a number stated in dollars and nominal is stated with an index number.