Really need some help on these two.

14. The security market line 15. a. Indicates which firms are earning positive profits. b. Relates the inflation rate to the real risk-free interest rate. c. Indicates a firm's required rate of return given the firm's beta coefficient. d. Determines returns on treasury bills and bonds. What happens to the security market line if the risk-free interest rate increases? a. It becomes kinked. b. It makes a parallel shift upward. c. It pivots upward from the y-axis intercept. d. It makes a parallel shift downward