Assume a Portfolio Has the Possibility of Returning 7 Percent,8

Assume a portfolio has the possibility of returning 7 percent,8 percent,10 percent or 12 percent with a likelihood of 20 percent,30 percent 25 percent and 25 percent respectively.Considering the portfolio's standard deviation and expected value would you say that this portfolio is of

A) Average yield,low risk
B) Lower than average yield,low risk
C) Average yield,average risk
D) Not enough information to tell