问题
单项选择题
A portfolio is equally invested in Stock A, with an expected return of 6 percent, and Stock B, with an expected return of 10 percent, and a risk-free asset with a return of 5 percent. The expected return on the portfolio is:（）
A. 7.4%.
B. 8.0%.
C. 7.0%.
答案
参考答案：C
解析：
333×0.06+0.333×0.10+0.333×0.05=0.07.