Option B
A. The ratio of the second unicuspid (the 3rd upper incisor) to the least interorbital width of the cranium is greater than 19%.
B. The ratio of the third unicuspid (the upper canine) to the least interorbital width of the cranium is greater than 19%.
Select

Option AA. The ratio of the second unicuspid (the 3rd upper incisor) to the least interorbital width of the cranium is less than 19%.B. The ratio of the third unicuspid (the upper canine) to the least interorbital width of the cranium is less than 20.5%.Select