The Geometric Average Return Is The

The geometric average return is the:

A) Summation of the returns for a number of years divided by the n^th root when n equal the number of years
B) Average compound return earned per year over a multi-year period
C) Compound total return for a period of years divided by the number of years in the period
D) Return earned in an average year over a multi-year period
E) Average squared return earned in a single year