You have the following information about your stock portfolio. You own 4 ,000 shares of Stock A which sells for $ 17 with an expected return of 9 %. You own 2,000 shares of Stock B which sells for $10 with an expected return of 6%. You own 4,000 shares of Stock C which sells for $12 with an expected return of 9%. You own 9 ,000 shares of Stock D which sells for $ 8 with an expected return of 9 %. What is the expected return on your portfolio?