Assume that you currently hold a well-diversified portfolio that has an required return of 15.0% and a beta of 2.00. You are in the process of buying 100 shares of ATT Corp at $10 a share and adding it to your portfolio. ATT has an required return of 12.0% and a beta of 1.20. The total value of your current portfolio is $9,000. What will the expected return and beta on the portfolio be after the purchase of the ATT stock? p bp 12.30%; 1.28 14.70%; 1.92 10.50%; 1.23 10.50%; 1.28 14.50%; 1.92 14.50%; 1.47