You invest $100 in both a risky asset with an expected rate of return of 0.12 and a standard deviation of 0.15 and a T-bill with a rate of return of 0.05. What percentages of your money must be invested in the risky asset and the risk-free asset, respectively, to form a portfolio with an expected return of 0.09?

Group of answer choices

85% and 15%

75% and 25%

67% and 33%

57% and 43%

cannot be determined