Daring Dora Holds 90% of Her Assets in High-Technology Stocks

Multiple Choice

Daring Dora holds 90% of her assets in high-technology stocks, earning 12%, and 10% in long-term government bonds, earning 6%. The expected return on her portfolio:

A) is 6%.
B) is 9%.
C) is 11.4%
D) is 12%.
E) cannot be determined without knowing what the dollar value of her assets is.