3) (25 points) Please, first fill in the spaces in the following table by assigning returns for stocks A and B over the years from 2017 to 2021, depending on your own choice. (The use of same return data by different students will be treated as a cheat attempt and will be penalized severely). Then, solve the following questions. 2017 2018 2019 2020 2021 RA (%) RB (%) What is the expected return for Stock A (E(RA))? a) What is the expected return for Stock B (E(RB))? b) What is the covariance between the returns of Stock A and B