Stock A has a beta of 0.8 and Stock B has a beta of 1.2. 50% of Portfolio P is invested in Stock A and 50% is invested in Stock B. If the market risk premium (rm-rrf) were to increase but the risk-free rate (rRF) remained constant, which of the following would occur? a. the required return will decrease by the same amount for both Stock A and Stock B. b. the required return will increase for both stocks but the increase will be treated for Stock B than for Stock A. c. The required return will increase for Stock A but will decrease for Stock B. d. The required return will increase for Stock B but will decrease for Stock A. e. The required return on Portfolio P will remain unchanged.