A portfolio has three stocks-330 shares of Yahoo (YHOO), 320 shares of General Motors (GM), and 50 shares of Standard and Poor's Index Fund (SPY). If the price of YHOO is $20, the price of GM is $30, and the price of SPY is $150, calculate the portfolio weight of YHOO and GM OA. 20.9%, 34.4% OB. 27.8%, 52.7% OC. 27.8%, 40.5% OD. 13.9%, 24.3% COD