Your retirement portfolio comprises 100 shares of the Standard & Poor's 500 fund (SPY) and 100 N shares of iShares Barclays Aggregate Bond Fund (AGG). The price of SPY is 14 and that of ales AGG is $99. If you expect the return on SPY to be 10% in the next year and the return on AGG to be 5%, what is the expected return for your retirement portfolio? O A. 6.91% B. 7.68% O C. 8.83% OD. 6.52% fit