Your portfolio has a beta of 1.12. The portfolio consists of 20 percent U.S. Treasury bills, 50 percent stock A, and 30 percent stock B. Stock A has a risk-level equivalent to that of the overall market. What is the beta of stock B?
A. 1.47
B. 1.52
C. 1.69
D. 1.84
E. 2.07