What is the expected return and standard deviation of a portfolio consisting of $ 9000 invested in a risk-free asset with an 8.5-percent rate of return, and $ 3000 invested in a risky security with a 20.5-percent rate of return and a 25.5-percent standard deviation?

17.50 percent, 19.125 percent

11.50 percent, 6.375 percent

6.375 percent, 11.50 percent

19.125 percent, 17.50 percent