You invest $100 in a risky asset with an expected rate of return of 0.11 and a standard deviation of 0.21 and a T-bill with a rate of return of 0.045. 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 0.13?

Group of answer choices

a)57.75% and 42.25%

b)Cannot be determined.

c)67.67% and 33.33%

D)130.77% and 30.77%

e)30.77% and 130.77%