which of these data sets is symmetrical?
A1,8,15,15,15,22,22,22,29,36,43
B1,8,15,22,22,22,29,29,29,36,43
C1,8,15,15,22,22,22,29,29,36,43
D1,1,15,15,22,22,22,29,29,36,43
A1,8,15,15,15,22,22,22,29,36,43
B1,8,15,22,22,22,29,29,29,36,43
C1,8,15,15,22,22,22,29,29,36,43
D1,1,15,15,22,22,22,29,29,36,43