you have a portfolio with a standard deviation of 20% and an expected return of 18%. You were considering adding one of the stocks in the following table if after adding the stock you will have 20% of your money in new stock and 80% of your money in existing portfolio. Which one should you add?

You have a portfolio with a standard deviation of 20% and an expected return of 18%. You are considering adding one of the fwo stocks in the following table. If after adding the stock you will have 20% of your money in the new stock and 80% of your money in your existing portfolio, which one should you add? Standard deviation of the portfotio with stock A is \%. (Round to two decimal places.) Standard deviation of the portfolio with stock B is \%. (Round to two decimal places.) Which stock should you add and why? (Select the best choice below.) A. Add A because the portfolio is less risky when A is added B. Add B because the portiolio is less risky when B is added. C. Add either one because both portfolios are equally risky