An investor recorded the following trades in shares between 2015 and 2020:

• 2015: 20 shares bought at $50
• 2016: 10 shares sold at $52
• 2017: 100 shares bought at $50
• 2018: 50 shares bought at $51
• 2019: 75 shares sold at $51
• 2020: 85 shares sold at $58

Assume that shares were bought and sold at the beginning of the years. Given the trading record of the investor, which of the following will be lower?

1-Arithmetic Mean Return

2-Geometric Mean Return

3- Both returns are the same