A portfolio has three stocks 300 shares of Yahoo (YHOO), 300Shares of General Motors (GM), 
and 80 shares of Standard and Poorʹs 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. 
A) 11.1%, 20.0% 
B) 16.7%, 28.3% 
C) 22.2%, 33.3% 
D) 22.2%, 43.3%