a You have a portfolio with a standard deviation of 20% and an expected return of 19%. You are considering adding one of the two stocks in the following table. I atter 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? Expected Return 12% 12% Standard Deviation 21% 18% Correlation with Your Portfolio's Returns 0.3 0.6 StockA Stock B Standard deviation of the portfolio with stock Ais % (Round to two decimal places.) (a