this is not a hw or quiz question - its a lecture question thats not worth points. i would just like to be prepared for lecture

Qn2: You are investing in a three-stock portfolio with $20,000 invested in stock A,$30,000 in stock B and $15,000 in stock C. Stock A,B and C each has an expected return of 8%,10% and 12%, respectively. What is the portfolio's expected return? 1. 7.07% 2. 9.84% 3. 10% 4. 10.27%