You are evaluating a list of new stocks that all have the same standard deviation.

You decide to randomly choose one of the new stocks to add to your existing portfolio. If you want to reduce the portfolio's risk by the most you can, which of the following would you want to occur?

a-You randomly choose a stock that has the same expected return as the portfolio.

b-You randomly choose a stock that has a higher degree of correlation with the stocks already in the portfolio.

c-You randomly choose a stock with a correlation of 1.0 with the stocks already in the portfolio.

d-You randomly choose a stock that has a lower degree of correlation with the stocks already in the portfolio.