Kumar Consulting Operates Several Stock Investment Portfolios That Are Used

Kumar Consulting operates several stock investment portfolios that are used by firms for investment of pension plan assets.Last year,one portfolio had a realized return of 12.6 percent and a beta coefficient of 1.15.The average T-bond rate was 7 percent and the realized rate of return on the S&P 500 was 12 percent.What was the portfolio's alpha?

A) -0.75%
B) -0.15%
C) 0%
D) 0.15%
E) 0.75%