A: 14+12+7+9+8+5+10+22+25+10 =122÷10= 12.2
B: 9, 10, 12, 13, 13, 13, 15, 15, 16, 16, 18, 22, 23, 24, 24, 25 = 16.75
C:12, 15, 14, 13, 19, 17, 15, 9, 9, 9 = 13.2
D: 9, 5, 10, 12, 11, 15, 16, 14, 9, 8 = 10.9
E: 16, 11, 14, 13, 19, 8, 16, 15, 15, 13 = 14.5
The total mean is 67.55 shirts ,which also goes to 8
Your answer is 8 !