Determine which one of these three portfolios dominates another. Name the dominated portfolio and the portfolio that dominates it. Portfolio Purple has an expected return of 18 percent and risk of 23 percent. The expected return and risk of portfolio Blue are 19 percent and 28 percent, and for the Yellow portfolio are 21 percent and 22 percent.

A. Portfolio Blue dominates portfolios Purple and Yellow.

B. Portfolio Purple dominates portfolios Blue and Yellow.

C. Portfolio Yellow dominates portfolios Purple and Blue.