Use the table, which gives the total Year Aerobic Basketball Cross- amounts of sales (in millions of dollars) for Training Walking aerobic, basketball, cross-training, and 2005 275 878 1484 3673 walking shoes for the years 2005-2011. 2006 276 964 1533 4091 Determine which type of shoe shows 2007 289 892 1591 4197 greater variation: aerobic or cross-training. 2008 268 718 1647 4204 2009 222 741 2060 4416 2010 243 721 2112 4256 2011 255 729 2170 4299 Which type of shoe shows greater variation: aerobic or cross-training? O A. Cross-training shows greater variation with a standard deviation of million dollars. O B. Aerobic and cross-training have equal variances. O C. Aerobic shows greater variation with a standard deviation of million dollars. (Round to one decimal place as needed.)