Your portfolio comprises four investments, with an equal dollar value invested in each. The four investments are 1) the S&P 500 market portfolio, 2) shares of Tesla stock, 3) a General Motors bond, and 4) cash in a bank savings account which pays a guaranteed 0.50% interest this year. The CAPM betas for Tesla stock and the GM bond are 1.97 and 0.60, respectively. What is the beta of your entire portfolio? Group of answer choices

0.67 0.89 1.01 1.20 1.44 1.67