You have a portfollo with a standard devation of 29% and an expected return of 17%. You are considering adding one of the fwo stocks in the following tabie. if aflet adding the stock you . hawe 20% of your money in the new stock and 80% of your money in your existing portlolio, which one should you add? Standard deviation of the portfolio wath stock A it . W. (Round to hwo decimal places.) Standard deviaton of the portfolio with stock B is . W. (Round to two decimal places.) Which stock should you add and why? (Seloct the best choice below) A. Add A because the portolio is less risky when A is added B. Add B becatse the portfollo is iess risky when B is added C. Add either one because both portholios are equally rishy