The risk-free rate of return is currently 3.1 percent and the market portfolio return is estimated to be 12.4 percent. The expected returns and betas of four shares are as follows: Share Beta Expected Return (%) A 1.18 14.07 B 0.90 11.17 C 1.47 16.77 D 1.03 12.68According to CAPM which stocks are overvalued? D and A Only A Only B Only D C and D