Which of the following statements is most correct? a. The expected future rate of return, r, is always above the past realized rate of return. r, except for highly risk-averse investors. b. The expected future rate of return, r, is always below the past realized rate of return, r. except for highly risk-averse investors. c. The expected future rate of return, r, is always below the required rate of return, r, except for highly risk-averse investors. d. There is no logical reason to think that any relationship exists between the expected future rate of return, r, on a security and the security's required rate of return, r. e. Each of the above statements is false