Khalid O'Brien has a 2-stock portfolio with a total value of $150,000. $52,500 is invested in Stock A with a beta of 0.75 and the remainder is invested in Stock B with a beta of 1.42. What is his portfolio's beta? Do not round your intermediate calculations. Round your final answer to 2 decimal places. a. 0.59 b. 0.66 c. 1.19 d. 2.17 e. 0.98