You have a portfolio with a standard deviation of 25% and an expected return of 20%. 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?

	Expected Return	standard deviation	Correlation with Your Portfolio's Returns
stock a	15%	24%	0.2
stock b	15%	17%	0.6

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.)