Stephanie plans to invest 20 percent of her funds in the common stock of Lowe Inc. and 80 percent in Kering Corporation. The standard deviation of returns for Lowe Inc. is 18 percent and for Kering Corporation is 32 percent. The correlation between the returns for Lowe Inc. and Kering Corporation is 0.70 (negative 0.70 ). Determine the standard deviation of returns for Stephanie's portfolio. 23.22% 29.20% 20.47% 5.39%