Company ABC has an investment in stock D and E. Stock E doesn't pay dividends while stock D pays dividends frequently. The prices of stock D and E for the last 5 years, also the dividend of stock D are as follows: Year Stock E Price (Rp) Stock D Price (Rp) Stock D Dividend 2017 1000 1300 2018 1200 1300 90 2019 1350 1300 80 2020 1250 1300 95 2021 1400 1300 85 a. Calculate the arithmetic average return and the geometric average return from 2017 to 2021. b. In 2021, company ABC invest Rp500 million in stock E and Rp700 million in stock D. You have probabilities for recession 30%, normal 40%, and boom 30%. Under recession circumstances, you expect the return will be 5% lower than the return in normal condition, while under boom circumstances the return is expected to be 5% higher than return in normal condition. Calculate the expected return and the standard deviation for stock D and E, also calculate the expected return for the portfolio. c. If the market risk premium is 7% and a risk-free investment rate is 3%, which stocks have the highest level of systematic risk? Which stocks have the highest level of unsystematic risk? Explain