XYZ's stock price and dividend history are as follows: An investor buys three shares of XYZ at the beginning of 2019 , buys another two shares at the beginning of 2020 , sells one share at the beginning of 2021, and sells all four remaining shares at the beginning of 2022 . What is the arithmetic average time-weighted rates of return for the investor? 4.50% 4.38% 4.44% 4.47% 4.41%