Suppose that you observe 6 years of return data for a particular stock and you correctly make the following calculation of standard deviation: 0 = (3 10.5)2 + (38 10.5)2 + (21 10.5)2 +(-15 10.5)2 + (29 10.5)2 +(-13 10.5)2 5 What is the geometric average return for this stock? A. 10.41% B. 8.60% C. 22.21% D. 19.3% E. 10.5%