A portfolio has three stocks - 100 shares of Yahoo (YHOO), 210 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 $20, and the price of SPY is $130, calculate the portfolio weight of YHOO and GM. A. 15.7%,33.1% B. 15%,29.8% C. 11%,31.4% D. 11.8%,16.5%