We know that two stocks A and B are correctly priced by the CAPM model. For A, the expected return is 12%, and the beta is 1.5; for B, the expected return is 6%, and the beta is 0.5. Based on this information, what are the risk free rate and equity risk premium?

A. 3%; 9%

B. 3%; 6%

C. 2%; 8%

D. 4%; 10%