Home Grown Tomatoes stock returned 28.7 percent, 2.6 percent, 13.1 percent, 12.2, and 11.8 percent over the past five years, respectively. What is the average rate of return and standard deviation for this time period? O % 15.47%; 10.23% 13.68%; 11.92% 15.47%; 9.36% 13.68%; 9.41%