len annual returns are listed in the following table: (Click on the following icon in order to copy its contents into a spreadsheet.) 19.5% 16.5% 17.9% - 49.3% 43.1% 1.8% -16.7% 46.2% 45.1% -3.1% a. What is the arithmetic average return over the 10-year period? b. What is the geometric average return over the 10-year period? c. If you invested $100 at the beginning, how much would you have at the end