Below are the stock returns for the past five years for Agnew Industries:
Year Stock Return
2021 21%
2020 20%
2019 -12%
2018 7%
2017 7%
What were the stock's arithmetic and geometric means during this five-year period, respectively?
a. 8.6%; 7.91%
b. 9.6%; 8.91%
c. 9.6%; 7.31%
d. 10.6%; 7,91%
e. 10.6%; 7.31%