i dont need the first one solved but the second picture is the same as the first.

thank you!

You have a portfolio with a standard deviation of 29% and an expected return of 18%. You are considering adding one of the two stocks in the following table. If after adding the stock you will have 25% of your money in the new stock and 75% of your money in your existing portfolio, which one should you add? Standard deviation of the portfolio 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 B because the portfolio is less risky when B is added. B. Add A because the portfolio is less risky when A is added. C. Add either one because both portfolios are equally risky. You have a portfolio with a standard deviation of 22% and an expected return of 17%. You are considering adding one of the two stocks in the following table. If after adding the stock you will have 25% of your money in the new stock and 75% of your money in your existing portfolio, which one should you add? Standard deviation of the portfolio with stock A is \%. (Round to two decimal places.)